Following the three key predators of the Yellowstone ecosystem: the wolf, red fox and coyote.

The headwaters of seven major rivers run from the Continental Divide across the ecosystem and flow into the western United States; the waters carve the landscape, creating natural boundries.

Julia must be careful when dealing with a giant python in a living room. Together with her husband John, she does everything she can to catch a snake hidden in the air conditioning box. And, a python has taken shelter under a family's garage roof.

When a venomous snake is found hiding in a kindergarten, Julia has to act quickly so that no child is harmed; a customer has spotted an eastern brown snake on his property, the second most venomous snake in the world.

The team is determined to have Gibson the sea otter pup discover his independence as he separates from his pal, Mara; the African penguins head off-site for spring cleaning; Thor the moray eel proves he's the ultimate escape artist.

A sea lion called Finn has tummy trouble and the team feeds him a snack that will help them investigate why; Big Mama, the guitarfish, may be living up to her name; the boa-duo, Ripley and Ridley, receive a new home.

Dr. Ross goes to surgery when constipation becomes serious for a tegu lizard; Dr. Blue treats a boxer that can barely breathe; the doctors help a baby alpaca in distress and are given VIP access to a special event as a thank you.

Jackson meets bully cat, Baby, who's holding all the female cats hostage, causing them to hide in the bathroom; Jackson comes to the aid of an interior designer's couch destroying cats, one of which is shedding pounds on a hunger strike.

In Philadelphia, Jackson helps a cat named Charlee rebuild the confidence that her sister cat, Frankie, has nearly beaten out of her; The Cat Daddy must crack the case of a pee-soaked apartment in order help a family with multiple cats.

A woman travels all the way from San Diego to give one of Villalobos' senior dogs a chance at a home; Lizzy and Marcel search for a mama dog's lost puppies out in the country; a new parolee makes a helpful discovery on his first day.

Earl returns from rehab, hoping to rebuild his life working with the dogs; a couple comes looking for a dog who can handle crowded streets of NYC; Lizzy rescues a dog after a confrontation with the owner who abandoned it.

Jeremy investigates grisly river attacks in the Himalayas, but is warned that the suspected predator is a sacred creature.

Jeremy dives into western Australia's crocodile-infested Fitzroy River to catch an elusive, endangered shark.

Jeremy investigates when a terrifying creature with sharklike teeth is rumored to exist in Botswana's Okavango Delta.

Dr. Jeff must perform surgery on a cherished Doberman to remove a large mass; Dr. Baier treats a 10-year-old cockatiel having trouble breathing; Dr. Don helps a playful puppy with a broken elbow.

When a beloved poodle arrives at the clinic, Dr. Jeff discovers a life-threatening condition and rushes him into surgery; four turtles, unable to eat, have their first vet visit in 43 years; Dr. Jeff and the team head out to operate on an alligator.

Forrest visits Vantara to see efforts securing a future for rare species; he joins a cheetah feeding circle, meets newborn cubs and follows a once orphaned sun bear called Prince.

Forrest Galante joins the rescue operation to save animals from illegal trade and helps a sick Shoebill. From hippos to meerkats, he sees Vantara's care in action. Finally, Forrest revisits animals he's met before, witnessing their recovery and more.

A Husky has been baited by a dangerous nibble; Dr. G must be precise with a Boston Terrier believed to have troublesome objects in its ear and nose; an exotic animal charity inspires Ben to harness humour for a good cause.

A canine's countertop gulp puts Dr. G and Ben on the road to a wholly challenging case; a feline who may have nibbled from a first aid kit presents a dire situation; Ben tries to pull his old school dad into the 21st century with mobile digital gear.

A canine with a stomach full of forbidden snacks socks it to Dr. G; a fellow member of the veterinary community fears her dog's symptoms might be due to an off-menu meal, or something worse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

Forrest visits Vantara to see efforts securing a future for rare species; he joins a cheetah feeding circle, meets newborn cubs and follows a once orphaned sun bear called Prince.

Forrest Galante joins the rescue operation to save animals from illegal trade and helps a sick Shoebill. From hippos to meerkats, he sees Vantara's care in action. Finally, Forrest revisits animals he's met before, witnessing their recovery and more.

A Husky has been baited by a dangerous nibble; Dr. G must be precise with a Boston Terrier believed to have troublesome objects in its ear and nose; an exotic animal charity inspires Ben to harness humour for a good cause.

A canine's countertop gulp puts Dr. G and Ben on the road to a wholly challenging case; a feline who may have nibbled from a first aid kit presents a dire situation; Ben tries to pull his old school dad into the 21st century with mobile digital gear.

A canine with a stomach full of forbidden snacks socks it to Dr. G; a fellow member of the veterinary community fears her dog's symptoms might be due to an off-menu meal, or something worse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

Jeremy dives into western Australia's crocodile-infested Fitzroy River to catch an elusive, endangered shark.

Jeremy investigates when a terrifying creature with sharklike teeth is rumored to exist in Botswana's Okavango Delta.

Julia and her snake catcher colleague David head to Airlie Beach to catch two venomous snakes. And, an eastern brown snake, the second most dangerous land snake in the world, has crawled into a garage and needs to be caught as quickly as possible.

Julia and her snake catcher colleague, Stuart McKenzie, deal with a large python hanging in a treetop. A mother discovers a snake while playing hide and seek with her children. Plus, Julia has acquired a tarantula as a new pet to overcome her fears.

Technology is brought to the aquarium to monitor beluga whale activity; Maggie the small-clawed otter's training kicks in when receiving a shot and Morty the sea star has a checkup after suspicious growths form.

The African penguin colony greets its newest additions after a successful mating season; sea otter Mara is presented to the rest of the raft, and the bottlenose dolphin population in Florida is examined.

Police rescue a turtle caught on fishing line, and it's up to Dr. Ross to unhook him; Dr. Blue waits for test results after performing dental surgery on a loveable dachshund; Dr. Lavigne gives a stray cat first-class treatment.

Jackson meets an outdoor cat who, having been forced to live inside, has protested by soaking the place in pee; a desperate foster guardian resorts to Jackson as her only hope to save a cat from being euthanized.

Jackson experiences the vicious claws of a troubled cat terrorizing a family about to bring home a newborn baby; Jackson meets an inspirational cat named Skinny; Cole and Marmalade.

The great flood of 2016 leaves Louisiana in devastation; Tia and the Villalobos team head out to help the victims, including former adopters; Tia steps in to help reunite a hospitalized elderly woman with her two dogs.

When Tia receives an adoption email unlike any she's seen before, she makes a cross-country trip to find a dog a special home in time for Christmas; the kids' significant others band together to give the family an unforgettable present.

Officers patrol elk hunters and regulate the elk population, teach outdoor skills to kids at a pocket park, enforce traffic laws and monitor ice fishing activity and ice conditions.

The lives of men and women who are making the Michigan wilderness and landscape a safer place for not only animals, but humans alike.

Officers investigate a timber contract violation and patrol Michigan's deer season; a Warden's videographer joins a DNR program that empowers women to explore outdoor hobbies and conservation.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Michigan's Conservation Officers unite to protect the state's resources amid winter's chill and a busy deer season; Great Lakes officers aid divers recovering a Tuskegee Airmen's plane, leading to a moving monument unveiling.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Michigan's Conservation Officers unite to protect the state's resources amid winter's chill and a busy deer season; Great Lakes officers aid divers recovering a Tuskegee Airmen's plane, leading to a moving monument unveiling.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

The lives of men and women who are making the Michigan wilderness and landscape a safer place for not only animals, but humans alike.

Officers investigate a timber contract violation and patrol Michigan's deer season; a Warden's videographer joins a DNR program that empowers women to explore outdoor hobbies and conservation.

Julia receives a call from a worried family who have discovered a very dangerous eastern brown snake under their patio. Together with two scientists, Julia wants to catch and milk the world's third most venomous snake, the dreaded coastal taipan.

Julia and her husband John must catch the second most venomous land snake in the world in a cramped laundry room. A snake has invaded a dog breeder's garden full of puppies. A woman has discovered a large python in the lake on her property.

The team is eager to open their new alligator exhibit featuring rare albino gators; sea otter Gibson is tested for a possible infection; divers must swim with Taroko the whale shark to get a blood sample.

Aquarium staff travel to the remote island of St. Helena to gain footage of whale sharks in their natural habitat during mating season; a spotted ribbontail ray is introduced to her new tank friends, and Cerbie the seal is treated for joint pain.

Birds of prey at the Renaissance Faire are in need of the West Nile vaccine; Piper the peppy dachshund is not so peppy; Dr. Lavigne performs surgery; Dr. Ross helps Tesla the tortoise with a fractured beak.

Jackson faces one of his greatest challenges when an old friend enlists his help; he is asked to put on a mass trapping event and recruit a new generation of volunteers to save community cats in Philadelphia.

Jackson guides a defeated couple and their cat who has been locked away for over a year; he visits a Cat-Bassador who works with his guardian to help special needs cats find forever homes; Jackson visits an incredible prison program.

Tia suffers a devastating injury and her children must step up to keep Villalobos running; her family's strength becomes tested like never before as, for the first time, Tia's kids must manage the parolees, rescues and adoptions on their own.

Newlyweds from New Jersey come looking for a new family member; Tia rescues an injured stray that the community has been trying to help; with his family back home in Virginia, longtime parolee Sui faces a tough decision.

R&B singer Keyshia Cole dreams of having a saltwater aquarium in her home, and Wayde and Brett endeavor to make her dreams come true.

Three-time world champion boxer Fernando Vargas asks Wayde and Brett to make a boxing glove-shaped tank for his boxing gym in Las Vegas; this challenge goes well beyond the ring.

California restaurant Mel's Drive In wants a tank for their new location in Santa Monica; the owners want a nostalgic feel and a ton of insert pieces that represent Mel's storied history while pointing to the restaurant's future.

High in the mountains, over 10,000 feet up, an unlikely champion stands: the whitebark pine. This resilient tree sustains life, providing food and shelter for animals like the grizzly bear, red squirrels, and more.

Following the three key predators of the Yellowstone ecosystem: the wolf, red fox and coyote.

The headwaters of seven major rivers run from the Continental Divide across the ecosystem and flow into the western United States; the waters carve the landscape, creating natural boundries.

The Yellowstone region is one of the planet's largest, nearly intact temperate zone ecosystems.

A look at the lives of Montana conservation officers who defend public lands, handle anti-poaching sting operations and more.

The headwaters of seven major rivers run from the Continental Divide across the ecosystem and flow into the western United States; the waters carve the landscape, creating natural boundries.

The Yellowstone region is one of the planet's largest, nearly intact temperate zone ecosystems.

A look at the lives of Montana conservation officers who defend public lands, handle anti-poaching sting operations and more.

Three-time world champion boxer Fernando Vargas asks Wayde and Brett to make a boxing glove-shaped tank for his boxing gym in Las Vegas; this challenge goes well beyond the ring.

California restaurant Mel's Drive In wants a tank for their new location in Santa Monica; the owners want a nostalgic feel and a ton of insert pieces that represent Mel's storied history while pointing to the restaurant's future.

Snake catcher Julia's first customer discovers an eastern brown snake while gardening; Julia gets caught on the hand by a green tree snake hidden under a fridge; Julia and her husband, John, race to remove a python from a retirement home.

Julia helps a frightened couple with a young eastern brown snake hidden in their garage; Julia and trainee Conway must retrieve a constrictor snake from a dilapidated pile of wood near a youth centre.

Greg and habitat designer Lucas travel to Washington State to meet the Dasch family, who look to create a grand Mayan-inspired terrarium for their extensive collection of poisonous dart frogs.

Just south of Cornel's World, reptile and amphibian lover and rescuer, Stevie, enlists the team to come up with a sci-fi fantasy-themed enclosure for her basilisk lizard; the guys lay a little princess magic on a showpiece for three ball pythons.

Dr. Ross goes to surgery when constipation becomes serious for a tegu lizard; Dr. Blue treats a boxer that can barely breathe; the doctors help a baby alpaca in distress and are given VIP access to a special event as a thank you.

Scout fears his tormentor, Caramel, to the point that he literally lives inside a kitchen cabinet; a woman adopts a hybrid Bengal cat who can use the toilet but can't otherwise keep still.

Jackson works with a guardian, Tara, whose traumatic experience with her previous cat affects her currently troubled cat, Cali; Jackson must deal with guardian Kurtis and his cat, Kurtis Jr., before the guardian has his feline namesake declawed.

When a dog that was adopted out mysteriously appears in a shelter in Mississippi, Tania and Earl head to the rescue; parolee Joe must separate two stray dogs fighting outside the shelter, leaving him shaken; hound dog adoption doesn't go as planned.

Tia attempts to rescue a stray, but her leg injury holds her back; new parolee Mike struggles to balance working and being a parent; a family comes to Villalobos hoping to adopt a dog for their daughter, but finding a good match proves a challenge.

Paul and Jimmy go after some of the biggest and nastiest gators; Eric has an identify crisis that leads him to strange behavior.

Paul and Jimmy experience hospitality and culture shock as they take on crocs and giant snakes in Mazatlan, Mexico; Paul faces off with the monster croc, El Diablo one final time.

The boys create the first no-kill croc rescue in Mexico; monster-crocodile El Diablo is terrorizing villages and Paul will not leave until it is captured.

Paul and Ashley train Kayla to become an alligator wrestler; Jimmy and the volunteers square off against a 17-foot crocodile at a new park in Tampa.

The boys dress up in medieval costumes and hunt for an alligator on the grounds of a Renaissance fair; Tre decides to become a professional artist like Ashley.

The boys battle a multitude of nuisance gators; Ashley suspects her job is in jeopardy; Paul tries to teach Kayla how to catch alligators by hand.

Gator wrestlers reunite at Native Village, where Paul encounters a 14-foot, 1,500-pound nemesis; Jimmy is reminded of the death of his friend and mentor, Michael "Skeet" Johns.

The boys must repair their old enclosures at Everglades Holiday Park to make space for endangered alligators; Tre is hired as an airboat captain, but soon wrecks his vessel.

A nuisance gator finds cover under an Elvis impersonator's 1959 Cadillac; Paul is forced to ride in Jimmy's truck after Tre accidentally wrecks his vehicle.

The boys battle a multitude of nuisance gators; Ashley suspects her job is in jeopardy; Paul tries to teach Kayla how to catch alligators by hand.

Gator wrestlers reunite at Native Village, where Paul encounters a 14-foot, 1,500-pound nemesis; Jimmy is reminded of the death of his friend and mentor, Michael "Skeet" Johns.

The boys must repair their old enclosures at Everglades Holiday Park to make space for endangered alligators; Tre is hired as an airboat captain, but soon wrecks his vessel.

A nuisance gator finds cover under an Elvis impersonator's 1959 Cadillac; Paul is forced to ride in Jimmy's truck after Tre accidentally wrecks his vehicle.

Paul and Jimmy experience hospitality and culture shock as they take on crocs and giant snakes in Mazatlan, Mexico; Paul faces off with the monster croc, El Diablo one final time.

The boys create the first no-kill croc rescue in Mexico; monster-crocodile El Diablo is terrorizing villages and Paul will not leave until it is captured.

Julia and John handle a snake in a doorway; a family finds a snake in their vacuum.

Julia helps a customer deal with a python with a particularly big belly in their garden and later races to get a python out of a tree.

The team must create a samurai-themed enclosure for two boa constrictors in time for the grand opening of Serpent Tattoo; Rachel is forced to confront her fear of snakes when the team collaborates with a rattlesnake wrangler.

The team create a gangster-themed enclosure for seven snakes; a Russian tortoise name Littlefoot gets a new home;. when Greg takes Kevin to the veterinarian, the results are a bit surprising.

Jeremy investigates the case of a Bolivian man who had his face ripped off by a ferocious river predator, leading to a showdown with an old adversary.

Jeremy visits a waterfall in the Pacific Northwest where an ancient creature allegedly attacks swimmers.

Jeremy Wade searches for a two-hundred year old legend.

The team rallies to get a scared dog out from under a vehicle; Tania's in-laws desire a new dog; Tia's son Moe and his fiancée Lizzy prepare for their big day.

Jackson Galaxy, the host of "My Cat From Hell," comes to Tia's aid when a sinkhole swallows a small Louisiana town and leaves 39 cats abandoned.

Kenani and Moe celebrate their birthday by converting a home in the swamps to a dog sanctuary; when one of Villalobos' beloved dogs gets unexpected news, Tia is determined to have him live out his days with the twins.

A large family hopes to adopt a new dog after losing their pet to cancer; Tia and Tania encounter a snarling, sick dog in New Orleans' 9th Ward.

A girl needs Tia's help after she saves a pit bull from drowning in a canal; Tia must hire another parolee after 20 new puppies arrive at Villalobos.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

At Vantara, Forrest witnesses King Cheetah race freely across a stadium-sized field. He marvels as an Orangutan enjoys cake, and nature shows to celebrate his birthday. Through these moments, it's clear that the animals at Vantara are living with joy.

Forrest visits Vantara to see efforts securing a future for rare species; he joins a cheetah feeding circle, meets newborn cubs and follows a once orphaned sun bear called Prince.

Forrest Galante joins the rescue operation to save animals from illegal trade and helps a sick Shoebill. From hippos to meerkats, he sees Vantara's care in action. Finally, Forrest revisits animals he's met before, witnessing their recovery and more.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

At Vantara, Forrest witnesses King Cheetah race freely across a stadium-sized field. He marvels as an Orangutan enjoys cake, and nature shows to celebrate his birthday. Through these moments, it's clear that the animals at Vantara are living with joy.

Forrest visits Vantara to see efforts securing a future for rare species; he joins a cheetah feeding circle, meets newborn cubs and follows a once orphaned sun bear called Prince.

Forrest Galante joins the rescue operation to save animals from illegal trade and helps a sick Shoebill. From hippos to meerkats, he sees Vantara's care in action. Finally, Forrest revisits animals he's met before, witnessing their recovery and more.

A large family hopes to adopt a new dog after losing their pet to cancer; Tia and Tania encounter a snarling, sick dog in New Orleans' 9th Ward.

A girl needs Tia's help after she saves a pit bull from drowning in a canal; Tia must hire another parolee after 20 new puppies arrive at Villalobos.

Questions are answered about the French bulldog, poodle, airedale, chihuahua and Labrador.

A dog's eye view of the bond shared by people and their pets.

There's a new arrival for Josie at the Vervet Monkey Foundation, catching up with eight-week-old Hector the hippo, and Alison is on a mission to tag a great white shark. Emily and Annie are called in to help a white rhino with a nasty horn injury.

Emily anesthetizes a cheetah; Will bonds with rhino orphan Arthur; Emma has her hands full with a troop of mongooses.

Will and Rachael volunteer at the world's largest sanctuary for orphaned rhinos; Emily attempts a life-threatening giraffe relocation, while three warthogs run Emma ragged; Marine biologist Alison finds a new way of dealing with plastic pollution.

Following the vets and volunteers of South Africa who rescue extraordinary animals.

Pete builds a secluded, three-story, speakeasy-themed treehouse, 60 feet above the ground with rooftop lounge and writing-and-recording room with vintage guitars for country music superstar Brian Kelley, of the award-winning duo Florida Georgia Line.

Pete builds a two-story, bird nest-inspired "human nest" with woven driftwood railings on a wild-bird paradise in Arkansas.

Pete is tasked with building a tree-top, Native American themed, summer camp treehouse with a built-in kennel, French door, climbing wall, back deck and fire pole for a young family on the Washington coast.

Pete helps three siblings surprise their parents with a Scandinavian-style, two story, art studio treehouse with Murphy-bed art tables, multi-use studio area and sky tents in Wisconsin.

Pete teams up with Make-A-Wish and the local fire department of Flagstaff, Arizona to grant an 8-year-old's wish of a whimsical treehouse masterpiece inspired by "The Boxtrolls" movie.

Pete returns to where he built his very first treehouse; now with experience, knowledge, new techniques and some steel, he can rebuild it; he has the technology; he has the capability to build the world's first bionic treehouse.

One feline has an appetite that's shockingly on the money, while another's taste for stringy oddities appears to be insatiable; while Ben is back home visiting family, an exotic bird with questionable peckishness puts Dr. G out of his comfort zone.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

A canine's countertop gulp puts Dr. G and Ben on the road to a wholly challenging case; a feline who may have nibbled from a first aid kit presents a dire situation; Ben tries to pull his old school dad into the 21st century with mobile digital gear.

A canine with a stomach full of forbidden snacks socks it to Dr. G; a fellow member of the veterinary community fears her dog's symptoms might be due to an off-menu meal, or something worse.

A Husky has been baited by a dangerous nibble; Dr. G must be precise with a Boston Terrier believed to have troublesome objects in its ear and nose; an exotic animal charity inspires Ben to harness humour for a good cause.

An apparent dog treat turns out to be anything but for Norman the canine; a cat with unexplained symptoms has Dr. G chasing a cause; a suspected foreign body case proves to be more than anyone bargained for.

When a Golden Retriever's tastes go off the beaten track Dr. G's skills must be rock-solid; Captain the three-legged cat's appetite proves to be as unique as his form; Dr. G's furry family brings a special inspiration to his work and life.

Dr. Dee returns to Ruby to host another remote clinic; a malnourished bunny; a border collie puppy with a congenital issue; discovering a case of feline immunodeficiency virus in a rescue cat.

Dr. Dee and her husband Ken host a clinic in a town with a population of 107; back at Animal House, Dr. Dee races to save an akita with a gunshot wound.

A canine with a stomach full of forbidden snacks socks it to Dr. G; a fellow member of the veterinary community fears her dog's symptoms might be due to an off-menu meal, or something worse.

A Husky has been baited by a dangerous nibble; Dr. G must be precise with a Boston Terrier believed to have troublesome objects in its ear and nose; an exotic animal charity inspires Ben to harness humour for a good cause.

An apparent dog treat turns out to be anything but for Norman the canine; a cat with unexplained symptoms has Dr. G chasing a cause; a suspected foreign body case proves to be more than anyone bargained for.

When a Golden Retriever's tastes go off the beaten track Dr. G's skills must be rock-solid; Captain the three-legged cat's appetite proves to be as unique as his form; Dr. G's furry family brings a special inspiration to his work and life.

Dr. Dee returns to Ruby to host another remote clinic; a malnourished bunny; a border collie puppy with a congenital issue; discovering a case of feline immunodeficiency virus in a rescue cat.

Dr. Dee and her husband Ken host a clinic in a town with a population of 107; back at Animal House, Dr. Dee races to save an akita with a gunshot wound.

Pete teams up with Make-A-Wish and the local fire department of Flagstaff, Arizona to grant an 8-year-old's wish of a whimsical treehouse masterpiece inspired by "The Boxtrolls" movie.

Pete returns to where he built his very first treehouse; now with experience, knowledge, new techniques and some steel, he can rebuild it; he has the technology; he has the capability to build the world's first bionic treehouse.

A tuxedo cat takes playtime too far, pitting Dr. G against a life-threatening foreign body; a barbeque season corn-undrum lands a Golden Retriever in urgent care.

A Bernese Mountain Dog suspected of scarfing an unmentionable feast is a potential record-breaking challenge for Dr. G; a feline rushed to a clinic after a close encounter with a sewing kit sparks a race against the clock to save a family from loss.

A canine's strange appetite delivers a stomach full of surprises; a cat with hair-ific taste leads to a marathon recovery mission; Dr. G's son, Ben, joins him for an action-packed summer.

An apparent dog treat turns out to be anything but for Norman the canine; a cat with unexplained symptoms has Dr. G chasing a cause; a suspected foreign body case proves to be more than anyone bargained for.

When an elderly man goes missing in a vast wilderness area, wildlife agents race to find him before nightfall; a tip leads agents to a haul of undersized redfish and anglers who refuse to confess; bloody evidence ties a trespasser to an illegal deer.

LDWF biologists undertake an explosive mission to help conserve Louisiana's wild turkeys; a suspicious deer skull points to a hunter flouting the law; more than 1,000 lbs of shrimp are at stake when a captain is caught in a major violation.

Wildlife agents join a manhunt for an armed fugitive on the bayou; a nervous young hunter reveals a serious violation; a night shrimping bust leads to a familiar and unrepentant culprit.

As temperatures drop to near-freezing, Officers Canfield and Jones use an ROV to search Merrimack River for a missing person; a man is caught illegally releasing coyotes from traps; officers host a meet-and-greet at the headquarters.

After an abandoned barrel is discovered, Officer Hannett works with local police to see if it's related to a 20-year-old cold case regarding a missing mother and daughter.

The New Hampshire Fish and Game Dive Team fights harsh conditions while on a double drowning mission at the Merrimack River; Officer Egan rescues a baby owl after the nest is disturbed; a family of ATV riders is busted for breaking the law.

High in the mountains, over 10,000 feet up, an unlikely champion stands: the whitebark pine. This resilient tree sustains life, providing food and shelter for animals like the grizzly bear, red squirrels, and more.

Following the three key predators of the Yellowstone ecosystem: the wolf, red fox and coyote.

The headwaters of seven major rivers run from the Continental Divide across the ecosystem and flow into the western United States; the waters carve the landscape, creating natural boundries.

The Yellowstone region is one of the planet's largest, nearly intact temperate zone ecosystems.

A warden keeps the peace as tempers flare over a simple misunderstanding. Later, Warden Kuka catches a repeat offender in the act. Warden Holland finds that someone fishing without a license also has a warrant out for his arrest.

A young hunter eyes the moose of his dreams and Warden Kambic tries to keep the peace between several hunters. Later, Warden Burroughs makes a tough call when deer get their antlers locked in a fight.

Wardens find that a group of litterbugs is guilty of multiple violations, then wardens catch over-the-limit anglers in the act. Wardens track hunters attempting to get an early start on the big game hunting season. Discover the lives of conservation officers of Montana defending public lands, handling anti-poaching sting operations, and more.

A young hunter eyes the moose of his dreams and Warden Kambic tries to keep the peace between several hunters. Later, Warden Burroughs makes a tough call when deer get their antlers locked in a fight.

Wardens find that a group of litterbugs is guilty of multiple violations, then wardens catch over-the-limit anglers in the act. Wardens track hunters attempting to get an early start on the big game hunting season. Discover the lives of conservation officers of Montana defending public lands, handling anti-poaching sting operations, and more.

The headwaters of seven major rivers run from the Continental Divide across the ecosystem and flow into the western United States; the waters carve the landscape, creating natural boundries.

The Yellowstone region is one of the planet's largest, nearly intact temperate zone ecosystems.

Cat owners and their fabulous felines in the southeast.

John Fulton is on the prowl to find the coolest cats on the West Coast.

A mother and daughter create a cats-only tree house connected by a suspension bridge for an energetic indoor cat.

A wildlife control officer works with dogs with messy habits; Antonio helps turn a laundry room into a doggy spa and a yard into a football-themed paradise.

The docs are on double duty when Dr Ross brings his daughter into the clinic; a dog is rushed to Dr Lavigne after suffering multiple seizures and Dr Blue performs a tricky surgery; the staff must tame a feisty feline patient.

Jackson works with a couple who have a lovable cat, Zachary, that also happens to spray all over the house; Jackson's conclusion as to why Zachary marks: barbarians at the gate; Jackson meets with troublemaking cat Freddie Krueger.

Jackson helps a couple whose three cats fight so much they moved into a bigger house just to give them extra space apart; the Cat Daddy works with a feral shop cat named Greenie whose spraying threatens business.

Tia finds herself short handed as Villalobos begins to expand; Pack of running pit bulls leads to an overwhelmed owner; Tia and Lizzie try to find Gidget a forever home for her final days.

Disease outbreak in the swamps threatens the safety of the dogs; Tania goes out on a difficult rescue; Jackson gets a shot at a forever home.

Jeremy searches for a monstrous beast that reportedly lives in the Zambezi River and can swallow children whole.

Jeremy travels to Central America to locate a man-sized beast that reportedly leaps into boats and inflicts devastating injuries upon fishermen.

Jeremy visits a waterfall in the Pacific Northwest where an ancient creature allegedly attacks swimmers.

A black Lab swallows toxic metal; a lost cat found with a mysterious injury; a tiny dog struggles to deliver a large puppy.

The team heads to Mexico to help desperate owners and their pets; a teenage boy and his sister worry about their sick dog; a remote village has never seen a vet.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

At Vantara, Forrest witnesses King Cheetah race freely across a stadium-sized field. He marvels as an Orangutan enjoys cake, and nature shows to celebrate his birthday. Through these moments, it's clear that the animals at Vantara are living with joy.

An apparent dog treat turns out to be anything but for Norman the canine; a cat with unexplained symptoms has Dr. G chasing a cause; a suspected foreign body case proves to be more than anyone bargained for.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

One feline has an appetite that's shockingly on the money, while another's taste for stringy oddities appears to be insatiable; while Ben is back home visiting family, an exotic bird with questionable peckishness puts Dr. G out of his comfort zone.

When a Golden Retriever's tastes go off the beaten track Dr. G's skills must be rock-solid; Captain the three-legged cat's appetite proves to be as unique as his form; Dr. G's furry family brings a special inspiration to his work and life.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

At Vantara, Forrest witnesses King Cheetah race freely across a stadium-sized field. He marvels as an Orangutan enjoys cake, and nature shows to celebrate his birthday. Through these moments, it's clear that the animals at Vantara are living with joy.

An apparent dog treat turns out to be anything but for Norman the canine; a cat with unexplained symptoms has Dr. G chasing a cause; a suspected foreign body case proves to be more than anyone bargained for.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

One feline has an appetite that's shockingly on the money, while another's taste for stringy oddities appears to be insatiable; while Ben is back home visiting family, an exotic bird with questionable peckishness puts Dr. G out of his comfort zone.

When a Golden Retriever's tastes go off the beaten track Dr. G's skills must be rock-solid; Captain the three-legged cat's appetite proves to be as unique as his form; Dr. G's furry family brings a special inspiration to his work and life.

Jeremy travels to Central America to locate a man-sized beast that reportedly leaps into boats and inflicts devastating injuries upon fishermen.

Jeremy visits a waterfall in the Pacific Northwest where an ancient creature allegedly attacks swimmers.

Cats of the Southwest.

Wild and domestic cats occupy the same sanctuary; popular television cat in Little Rock, Ark.

The team remodels a cramped condo into a personalized pet space for two cats and a rescue dog.

The team builds enclosures with artificial rock walls and an entertainment space for more than 20 reptiles in a cluttered basement.

Dr. Lavigne is tasked at removing a 6-pound mass from a small dog; Dr. Blue and wife welcome their first daughter to the family; the vets make a house call to a llama that's causing some drama; Dr. Ross extracts 14 teeth from a mini poodle.

Jackson takes the show on the road, literally. In order to save the lives of 50 kittens from LA shelters, the Cat Daddy high-tails 50 orphan kittens in need of a home all the way to his old stomping grounds of Boulder, CO.

A young man with a genuine fear of cats; The Cat Daddy returns to Colorado to keep his favorite kitten from the kitten rescue road trip in her adoptive home; Jackson teaches a boy he met at the adoption event how to clicker train kittens.

When a known dognapper drops a dog off at Villalobos, Mariah races to find the owner; new parolee finds himself way in over his head; Smack gets a second chance at a loving home after having her last adoption fall through.

Tania is furious that she has to deal with a tornado alone with no help from the parolees; pit bull trainer asks Tia for help adopting a work dog.

Following Michigan Conservation Officers as they protect and patrol natural resources in a remote area.

Michigan's firearm deer season kicks off, marking the busiest patrol time for conservation officers; in the days leading up, they search for violators using illegal deer shining tactics, ensuring a fair and legal hunt across the state.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

During the second elk hunting season, all harvested elk go to check stations, where conservation officers investigate kill sites; in District Three, officers analyze a successful kill, tracking blood trails in the snow for potential violations.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

During the second elk hunting season, all harvested elk go to check stations, where conservation officers investigate kill sites; in District Three, officers analyze a successful kill, tracking blood trails in the snow for potential violations.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Michigan's firearm deer season kicks off, marking the busiest patrol time for conservation officers; in the days leading up, they search for violators using illegal deer shining tactics, ensuring a fair and legal hunt across the state.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

The most popular comic strip kitty; the various materials from which kitty litter is made.

The birthplace of the domestic shorthair cat; the breeds that compete at CFA cat shows.

The team transforms a hazardous backyard into a dog-friendly escape; a bathroom transforms into a dog wash and feeding station.

Antonio and the team make a mountain cabin safe and build a Japanese-inspired lounge for a blind dog.

Dr. Blue must figure out what's wrong with Niko, a lethargic dog that may have eaten his mom's shorts; Dr. Lavigne operates on a husky with a torn ligament; Dr. Ross faces an emergency with his own family pet.

Jackson experiences a severe, and most illuminating, cat attack at the claws of a troubled cat named May; the Cat Daddy must help a nervous cat guardian move her two very feral cats to Canada.

Jackson works on the behavior of a hyperactive cat named Mr. Weasley. However, when this Persian cat goes down mid-play, the story takes a completely different turn. Jackson also figures out how to move an exiled cat indoors.

In one of the worst cases of neglect Tia has ever seen, the team tries to nurse a severely malnourished dog back to health; ten years after Hurricane Katrina, one of the survivors finally has a chance at a forever home; celebrating 100 episodes.

A family contacts Tia after seeing their dog rescued in an earlier episode and want to bring him home; Earl's sudden change in behavior forces Tia's hand; Matt makes the ultimate decision.

The Mob Museum makes Wayde and Brett an offer they can't refuse; they want a tank with replica sunken rumrunner for their prohibition exhibit and speakeasy in downtown Las Vegas.

MMA fighter Urijah Faber wants Wayde and Brett to create two aquariums for his new gym and wants a little bit of the ocean inside; a couple hosts a party for The Marine Aquarium Convention.

Ocean Resort Casino in Atlantic City, N.J., wants a 6,000-gallon aquarium that has the team literally burning through panels to get the job done.

NFL player Clay Matthews and his wife, Casey, are building their dream home and want a classy tank with subtle references to his career with the Green Bay Packers.