Tom ventures into new territory for beaver; Jake puts his young dogs to the test, but one goes missing on the mountain; Kidd and Harry navigate a gauntlet of river ice on a midwinter fishing expedition.

When a former Navy pilot and UAP whistleblower visits the ranch, an incredible event takes place that leaves the entire team in disbelief.

Reports of a jar of gold send Adam and Kru on the trail of missing prospector Volcanic Brown and his last known location; Don and Taylor investigate a strange marking on the prospector tools found in the Upper Pitt.

A small convoy heads out with an oversized load; Lisa Kelly and Reno Ward's skills are tested by the treacherous journey; Art Burke attempts to navigate an ice road over a frozen lake; Alex Debogorski stops to help a stranded trucker.

Engine trouble plagues Buffalo's newest plane; a standoff between Joe and Transport Canada threatens to close the airline; Joe faces a tough decision about his old dog Sophie.

Reports of a jar of gold send Adam and Kru on the trail of missing prospector Volcanic Brown and his last known location; Don and Taylor investigate a strange marking on the prospector tools found in the Upper Pitt.

A small convoy heads out with an oversized load; Lisa Kelly and Reno Ward's skills are tested by the treacherous journey; Art Burke attempts to navigate an ice road over a frozen lake; Alex Debogorski stops to help a stranded trucker.

Engine trouble plagues Buffalo's newest plane; a standoff between Joe and Transport Canada threatens to close the airline; Joe faces a tough decision about his old dog Sophie.

As the picking adventure in Michigan continues, Rick takes a gamble on a WWI helmet and a vintage RC Cola machine; Corey pursues a knockout deal.

Eustace uses his Mountain Man knowledge to get water to flow uphill to supply his young neighbors; Jake's truck slides off an icy road leaving him stranded.

Tony Harris travels to the Florida coast to investigate strange weather patterns and unexplained phenomena at the Bermuda Triangle; Tony and a team of experts analyze evidence of similar anomalies from around the world and pass a verdict.

After Germany makes an all-out push to take Paris, America is forced to make hard decisions that will either break the Allies or turn the tide of war.

The drilling operation in the mysterious Mesa on Skinwalker Ranch leads to a stunning and disturbing chain of events.

Eustace uses his Mountain Man knowledge to get water to flow uphill to supply his young neighbors; Jake's truck slides off an icy road leaving him stranded.

As the picking adventure in Michigan continues, Rick takes a gamble on a WWI helmet and a vintage RC Cola machine; Corey pursues a knockout deal.

Tony Harris travels to the Florida coast to investigate strange weather patterns and unexplained phenomena at the Bermuda Triangle; Tony and a team of experts analyze evidence of similar anomalies from around the world and pass a verdict.

After Germany makes an all-out push to take Paris, America is forced to make hard decisions that will either break the Allies or turn the tide of war.

Tony Harris travels to the Florida coast to investigate strange weather patterns and unexplained phenomena at the Bermuda Triangle; Tony and a team of experts analyze evidence of similar anomalies from around the world and pass a verdict.

After Germany makes an all-out push to take Paris, America is forced to make hard decisions that will either break the Allies or turn the tide of war.

As the picking adventure in Michigan continues, Rick takes a gamble on a WWI helmet and a vintage RC Cola machine; Corey pursues a knockout deal.

The drilling operation in the mysterious Mesa on Skinwalker Ranch leads to a stunning and disturbing chain of events.

Eustace uses his Mountain Man knowledge to get water to flow uphill to supply his young neighbors; Jake's truck slides off an icy road leaving him stranded.

The drilling operation in the mysterious Mesa on Skinwalker Ranch leads to a stunning and disturbing chain of events.

Clues revealed in Katzie First Nation history lead the team north; Kru unearths 100-year-old court documents that shed light on Slumach himself.

Reno Ward has a disastrous encounter with a speeding pick-up truck; Lisa Kelly attempts to rescue Reno but is forced to leave him to fend for himself; Art Burke attempts to deliver a Zamboni to save an isolated community's hockey season.

Joe goes for medical testing in Arizona; Jeff and Sam stress over their checkflights; Joe celebrates turning 17.

Clues revealed in Katzie First Nation history lead the team north; Kru unearths 100-year-old court documents that shed light on Slumach himself.

Reno Ward has a disastrous encounter with a speeding pick-up truck; Lisa Kelly attempts to rescue Reno but is forced to leave him to fend for himself; Art Burke attempts to deliver a Zamboni to save an isolated community's hockey season.

Joe goes for medical testing in Arizona; Jeff and Sam stress over their checkflights; Joe celebrates turning 17.

A seller comes in with an explosive pair of crutches; Rick takes a swing at one of the first books written about baseball; Corey and Chum try their luck on a seller's antique wooden slot machine.

Josh battles a blizzard and an onslaught of predators to protect his bison; Kidd and Harry navigate dangerous rapids to rescue a stranded pack mule.

In 1746, a mysterious ship's log suggests that a French admiral linked to the Knights Templar may have buried a vast treasure on Oak Island.

When Civil War veteran Col. Henry Carrington takes command of Fort Phil Kearny in Northern Wyoming, he never expects to face such a ferocious enemy as Red Cloud's band of Lakota Sioux.

In northern Wyoming's Powder River Valley, a group of ranchers band together to protect their rights to graze cattle; a powerful cabal of cattle barons smear the ranchers as common thieves and plot an invasion.

After hearing incredible testimony about a UFO crashing on Skinwalker Ranch many years ago, the team makes a shocking discovery inside the rocky Mesa.

Josh battles a blizzard and an onslaught of predators to protect his bison; Kidd and Harry navigate dangerous rapids to rescue a stranded pack mule.

A seller comes in with an explosive pair of crutches; Rick takes a swing at one of the first books written about baseball; Corey and Chum try their luck on a seller's antique wooden slot machine.

In 1746, a mysterious ship's log suggests that a French admiral linked to the Knights Templar may have buried a vast treasure on Oak Island.

When Civil War veteran Col. Henry Carrington takes command of Fort Phil Kearny in Northern Wyoming, he never expects to face such a ferocious enemy as Red Cloud's band of Lakota Sioux.

In northern Wyoming's Powder River Valley, a group of ranchers band together to protect their rights to graze cattle; a powerful cabal of cattle barons smear the ranchers as common thieves and plot an invasion.

In 1746, a mysterious ship's log suggests that a French admiral linked to the Knights Templar may have buried a vast treasure on Oak Island.

When Civil War veteran Col. Henry Carrington takes command of Fort Phil Kearny in Northern Wyoming, he never expects to face such a ferocious enemy as Red Cloud's band of Lakota Sioux.

In northern Wyoming's Powder River Valley, a group of ranchers band together to protect their rights to graze cattle; a powerful cabal of cattle barons smear the ranchers as common thieves and plot an invasion.

A seller comes in with an explosive pair of crutches; Rick takes a swing at one of the first books written about baseball; Corey and Chum try their luck on a seller's antique wooden slot machine.

After hearing incredible testimony about a UFO crashing on Skinwalker Ranch many years ago, the team makes a shocking discovery inside the rocky Mesa.

Josh battles a blizzard and an onslaught of predators to protect his bison; Kidd and Harry navigate dangerous rapids to rescue a stranded pack mule.

After hearing incredible testimony about a UFO crashing on Skinwalker Ranch many years ago, the team makes a shocking discovery inside the rocky Mesa.

Kru finds a tape-recorded interview of a man who claims to have found Slumach's mother lode; out on the trail, Adam's old rival appears to be a step ahead in his search for the gold.

A big bump takes out Art Burke's radiator; Todd Dewey's rig lands in a snowbank; Steph Custance regrets her foray onto a wet ice crossing; Alex Debogorski uses a sled to drag a construction shack across a frozen lake.

Jeff almost runs off of the runway; Prefkar learns how to play hockey; Joe goes on a date with a real dog.

Kru finds a tape-recorded interview of a man who claims to have found Slumach's mother lode; out on the trail, Adam's old rival appears to be a step ahead in his search for the gold.

A big bump takes out Art Burke's radiator; Todd Dewey's rig lands in a snowbank; Steph Custance regrets her foray onto a wet ice crossing; Alex Debogorski uses a sled to drag a construction shack across a frozen lake.

Jeff almost runs off of the runway; Prefkar learns how to play hockey; Joe goes on a date with a real dog.

Corey and Chum visit a classic car showroom to see a series 1 Shelby; a seller arrives with a classic Nintendo video game; Chum gets his hands on an autographed Olympic snowboard; a military vet brings in a pair of World War II binoculars.

Josh witnesses a bison give birth to the first calf of spring; Kidd and Harry load a mule into their boat and transport it down river through raging rapids; Jake runs two mountain lions up the same tree.

The drivers are ready for what is forecast to be a cold and busy winter, but the tragic passing of legendary driver Darrell Ward leaves the drivers wondering who can take his place.

Emotions run high for the remaining participants as they struggle to adapt; one participant wrestles with the solitude, while the other risks it all, taking a perilous journey into the unknown.

After three weeks, mental and physical struggles take their toll on the remaining participants; some teeter on calling it quits as they battle deep-seated conflicts.

When the team launches an illuminated swarm of drones on Skinwalker Ranch, they are stunned by a series of mysterious events.

Josh witnesses a bison give birth to the first calf of spring; Kidd and Harry load a mule into their boat and transport it down river through raging rapids; Jake runs two mountain lions up the same tree.

Corey and Chum visit a classic car showroom to see a series 1 Shelby; a seller arrives with a classic Nintendo video game; Chum gets his hands on an autographed Olympic snowboard; a military vet brings in a pair of World War II binoculars.

The drivers are ready for what is forecast to be a cold and busy winter, but the tragic passing of legendary driver Darrell Ward leaves the drivers wondering who can take his place.

Emotions run high for the remaining participants as they struggle to adapt; one participant wrestles with the solitude, while the other risks it all, taking a perilous journey into the unknown.

After three weeks, mental and physical struggles take their toll on the remaining participants; some teeter on calling it quits as they battle deep-seated conflicts.

The drivers are ready for what is forecast to be a cold and busy winter, but the tragic passing of legendary driver Darrell Ward leaves the drivers wondering who can take his place.

Emotions run high for the remaining participants as they struggle to adapt; one participant wrestles with the solitude, while the other risks it all, taking a perilous journey into the unknown.

After three weeks, mental and physical struggles take their toll on the remaining participants; some teeter on calling it quits as they battle deep-seated conflicts.

Corey and Chum visit a classic car showroom to see a series 1 Shelby; a seller arrives with a classic Nintendo video game; Chum gets his hands on an autographed Olympic snowboard; a military vet brings in a pair of World War II binoculars.

When the team launches an illuminated swarm of drones on Skinwalker Ranch, they are stunned by a series of mysterious events.

Josh witnesses a bison give birth to the first calf of spring; Kidd and Harry load a mule into their boat and transport it down river through raging rapids; Jake runs two mountain lions up the same tree.

When the team launches an illuminated swarm of drones on Skinwalker Ranch, they are stunned by a series of mysterious events.

The final words of a lifelong gold hunter send Adam, Kru and Daryl Friesen through an icy gauntlet high above Pitt Lake.

An old map connected to testimony from an 1891 eyewitness account of Slumach's hanging sheds light on the legend.

Angela and Dave need to transport a tiny home from Saskatchewan to British Columbia in time for a wedding; Dave's obsessed with a military rotator that would expand his business, but he can't afford it unless he makes a devilish deal with Big Donny.

The final words of a lifelong gold hunter send Adam, Kru and Daryl Friesen through an icy gauntlet high above Pitt Lake.

An old map connected to testimony from an 1891 eyewitness account of Slumach's hanging sheds light on the legend.

Angela and Dave need to transport a tiny home from Saskatchewan to British Columbia in time for a wedding; Dave's obsessed with a military rotator that would expand his business, but he can't afford it unless he makes a devilish deal with Big Donny.

King of the Swamp Troy Landry teams up with a local archeologist and deckhand Pickle to search for remains of an ancient Native American civilization in the Louisiana swamps; the team discovers evidence of an ancient and mysterious people.

Troy answers an urgent call from his longtime friend and fellow swamper, Daniel Edgar, who has discovered a mysterious threat to the alligator population; together, the duo investigates, uncovering clues that point to a suspicious culprit.

Troy's grandsons report strange bites on their legs while swimming at a beloved swimming hole; concerned, Troy investigates, enlisting the help of his friend, Don, to track down the mysterious culprit.

Troy gets an urgent call for help from his friends Leron and Porkchop to solve a chilling mystery; something is drawing ravenous wild hogs to an ancient cemetery, luring them to unearth graves that date back over 200 years.

Troy Landry's old family friend, Mr. Sterling, reveals a tantalizing story about a treasure chest said to have been lost in a Louisiana bayou over 75 years ago.

Troy Landry gets a call for help from anthropologist Dr. Duke Beasley who is on a mission to uncover lost cemeteries buried deep in the Louisiana swamps; journeying into the heart of the swamp to track down these vanishing grave sites.

Troy and his crew return to the Louisiana swamps to extract the valuable treasure trove of old-growth cypress logs they discovered; determined to capitalize on a rare spell of high water, they follow a map to relocate the wood.

When untold numbers of nutria suddenly vanish from the Louisiana marsh, veteran hunter Ronnie Adams finds his livelihood at risk and calls Troy Landry for help.

King of the Swamp Troy Landry teams up with a local archeologist and deckhand Pickle to search for remains of an ancient Native American civilization in the Louisiana swamps; the team discovers evidence of an ancient and mysterious people.

Troy answers an urgent call from his longtime friend and fellow swamper, Daniel Edgar, who has discovered a mysterious threat to the alligator population; together, the duo investigates, uncovering clues that point to a suspicious culprit.

Troy's grandsons report strange bites on their legs while swimming at a beloved swimming hole; concerned, Troy investigates, enlisting the help of his friend, Don, to track down the mysterious culprit.

Troy gets an urgent call for help from his friends Leron and Porkchop to solve a chilling mystery; something is drawing ravenous wild hogs to an ancient cemetery, luring them to unearth graves that date back over 200 years.

Troy Landry's old family friend, Mr. Sterling, reveals a tantalizing story about a treasure chest said to have been lost in a Louisiana bayou over 75 years ago.

Troy Landry gets a call for help from anthropologist Dr. Duke Beasley who is on a mission to uncover lost cemeteries buried deep in the Louisiana swamps; journeying into the heart of the swamp to track down these vanishing grave sites.

Troy and his crew return to the Louisiana swamps to extract the valuable treasure trove of old-growth cypress logs they discovered; determined to capitalize on a rare spell of high water, they follow a map to relocate the wood.

When untold numbers of nutria suddenly vanish from the Louisiana marsh, veteran hunter Ronnie Adams finds his livelihood at risk and calls Troy Landry for help.

King of the Swamp Troy Landry teams up with a local archeologist and deckhand Pickle to search for remains of an ancient Native American civilization in the Louisiana swamps; the team discovers evidence of an ancient and mysterious people.

Troy answers an urgent call from his longtime friend and fellow swamper, Daniel Edgar, who has discovered a mysterious threat to the alligator population; together, the duo investigates, uncovering clues that point to a suspicious culprit.

A Mexican rancher kills a strange creature; an Arizona woman claims she is the daughter of an alien; extraterrestrials are befriended by a serviceman.

A painting is reportedly linked to a series of house fires in Britain; a malevolent doll ruins lives; a California heiress begins a bizarre construction project.

Moe and his team host their roadshow at the edge of the American Civil War's most famed battlegrounds, where the ghosts of Union and Confederate soldiers are known to roam.

A Mexican rancher kills a strange creature; an Arizona woman claims she is the daughter of an alien; extraterrestrials are befriended by a serviceman.

A painting is reportedly linked to a series of house fires in Britain; a malevolent doll ruins lives; a California heiress begins a bizarre construction project.

Moe and his team host their roadshow at the edge of the American Civil War's most famed battlegrounds, where the ghosts of Union and Confederate soldiers are known to roam.

Zak and Aaron team up with a gladesman promising to bring them to a python jackpot; Troy gets his old partner Pickle back into fighting shape; and Bruce and Kaylyn return to a monster's den.

Troy and Pickle call in a chopper to reach a remote hunting spot deep in the Everglades; Zak and Aaron attempt a bold new strategy using fish chum to attract snakes; Bruce, Kaylyn and Dusty experiment with radical new ways of trapping pythons.

The teams unite to storm a hostile site that's rumored to be swarming with pythons; attacking by land, water and air, the teams deploy buggies, boats and drones to target and eliminate a growing threat to the Everglades.

Troy and Pickle struggle to take command of a friend's hunting dog; Zak and Aaron deploy kayaks deep into an untested area; Bruce and Kaylyn explore an isolated island with a gruesome past.

As the excessive heat begins to wear on the hunters, the King of the Swamp launches a contest to catch the biggest python; each hunting team uses their local knowledge to devise different strategies, hoping to come home the winner.

Pickle learns to drive an airboat on the fly; Zak and Aaron go after two invasive species at once; Bruce and Kaylyn fight through skin-shredding sawgrass; Dusty tests recipes for a new Everglades culinary sensation.

The hunters push past the point of exhaustion in the final stretch of python season, tempting fate in panther country, gambling on isolated hotspots, and searching into the dead of night.

In the final hunt of the year, the hunters descend on Florida's Lake Elizabeth Wetlands and go to battle with pythons gaining a foothold in this vital ecosystem, pushing their limits to safeguard paradise.

Zak and Aaron team up with a gladesman promising to bring them to a python jackpot; Troy gets his old partner Pickle back into fighting shape; and Bruce and Kaylyn return to a monster's den.

Troy and Pickle call in a chopper to reach a remote hunting spot deep in the Everglades; Zak and Aaron attempt a bold new strategy using fish chum to attract snakes; Bruce, Kaylyn and Dusty experiment with radical new ways of trapping pythons.

The teams unite to storm a hostile site that's rumored to be swarming with pythons; attacking by land, water and air, the teams deploy buggies, boats and drones to target and eliminate a growing threat to the Everglades.

Troy and Pickle struggle to take command of a friend's hunting dog; Zak and Aaron deploy kayaks deep into an untested area; Bruce and Kaylyn explore an isolated island with a gruesome past.

As the excessive heat begins to wear on the hunters, the King of the Swamp launches a contest to catch the biggest python; each hunting team uses their local knowledge to devise different strategies, hoping to come home the winner.

Pickle learns to drive an airboat on the fly; Zak and Aaron go after two invasive species at once; Bruce and Kaylyn fight through skin-shredding sawgrass; Dusty tests recipes for a new Everglades culinary sensation.

The hunters push past the point of exhaustion in the final stretch of python season, tempting fate in panther country, gambling on isolated hotspots, and searching into the dead of night.

In the final hunt of the year, the hunters descend on Florida's Lake Elizabeth Wetlands and go to battle with pythons gaining a foothold in this vital ecosystem, pushing their limits to safeguard paradise.

Zak and Aaron team up with a gladesman promising to bring them to a python jackpot; Troy gets his old partner Pickle back into fighting shape; and Bruce and Kaylyn return to a monster's den.

Troy and Pickle call in a chopper to reach a remote hunting spot deep in the Everglades; Zak and Aaron attempt a bold new strategy using fish chum to attract snakes; Bruce, Kaylyn and Dusty experiment with radical new ways of trapping pythons.

The search for Slumach's gold sends the team 300 kilometers away into the heart of mystery and murder; back in Pitt Lake, an unlikely prospector arrives with a shocking claim.

Lisa Kelly and Steph Custance team up for a challenging passage on the icy terrain; Art Burke brings a split load into the north country, hoping this will be his last load of the year; Todd Dewey hauls a double oversized camp shack.

Mickey gets Buffalo involved in a D-Day paratrooper jump; Prefkar escapes courier duty.

The search for Slumach's gold sends the team 300 kilometers away into the heart of mystery and murder; back in Pitt Lake, an unlikely prospector arrives with a shocking claim.

Lisa Kelly and Steph Custance team up for a challenging passage on the icy terrain; Art Burke brings a split load into the north country, hoping this will be his last load of the year; Todd Dewey hauls a double oversized camp shack.

Mickey gets Buffalo involved in a D-Day paratrooper jump; Prefkar escapes courier duty.

Rick and Chum try to work out a deal on an old weight loss device; a seller comes in with a sketch signed by Tom Petty; Chum connects to the other side when a Ouija board lands in the shop.

Eustace hunts for his winter meat in the pre-dawn hours; Jake harvests a deer with bow and arrow; Tom helps his friend Paul prepare for trapping season; Ray stalks elk through knee deep powder and spends a frigid night on the mountain.

The team reveals new insights to Matty Blake about the possible nature of what causes the phenomena on Skinwalker Ranch.

Matty Blake meets with property owner Brandon Fugal for a take on what the team has found on Skinwalker Ranch and future plans for their investigation.

After the team unearths new and bizarre clues from the Mesa on Skinwalker Ranch, a complex laser experiment leads to an encounter.

When a UAP appears above Skinwalker Ranch during an experiment involving hundreds of illuminated drones, the timing of what happens next leaves the team in disbelief.

After the team conducts a simultaneous drone swarm experiment in order to stimulate phenomena on Skinwalker Ranch, they encounter more than what they bargained for.

Eustace hunts for his winter meat in the pre-dawn hours; Jake harvests a deer with bow and arrow; Tom helps his friend Paul prepare for trapping season; Ray stalks elk through knee deep powder and spends a frigid night on the mountain.

Rick and Chum try to work out a deal on an old weight loss device; a seller comes in with a sketch signed by Tom Petty; Chum connects to the other side when a Ouija board lands in the shop.

The team reveals new insights to Matty Blake about the possible nature of what causes the phenomena on Skinwalker Ranch.

Matty Blake meets with property owner Brandon Fugal for a take on what the team has found on Skinwalker Ranch and future plans for their investigation.

After the team unearths new and bizarre clues from the Mesa on Skinwalker Ranch, a complex laser experiment leads to an encounter.

When a UAP appears above Skinwalker Ranch during an experiment involving hundreds of illuminated drones, the timing of what happens next leaves the team in disbelief.

The team reveals new insights to Matty Blake about the possible nature of what causes the phenomena on Skinwalker Ranch.

Matty Blake meets with property owner Brandon Fugal for a take on what the team has found on Skinwalker Ranch and future plans for their investigation.

After the team unearths new and bizarre clues from the Mesa on Skinwalker Ranch, a complex laser experiment leads to an encounter.

When a UAP appears above Skinwalker Ranch during an experiment involving hundreds of illuminated drones, the timing of what happens next leaves the team in disbelief.

Rick and Chum try to work out a deal on an old weight loss device; a seller comes in with a sketch signed by Tom Petty; Chum connects to the other side when a Ouija board lands in the shop.

After the team conducts a simultaneous drone swarm experiment in order to stimulate phenomena on Skinwalker Ranch, they encounter more than what they bargained for.

Eustace hunts for his winter meat in the pre-dawn hours; Jake harvests a deer with bow and arrow; Tom helps his friend Paul prepare for trapping season; Ray stalks elk through knee deep powder and spends a frigid night on the mountain.

After the team conducts a simultaneous drone swarm experiment in order to stimulate phenomena on Skinwalker Ranch, they encounter more than what they bargained for.

The team in Bute Inlet continues to follow new leads in search of answers regarding a missing or murdered prospector, while David Muise inches closer to gold in Pitt Lake.

Drivers head out one last time during the spring thaw; Steph Custance slides into trees; Todd Dewey struggles with a load on a twisty trail; Art Burke retrieves a heavy bulldozer; Reno Ward's truck dies on the ice; Lisa Kelly gets an emergency call.

Buffalo's top guns, rookies, and vets go to California for aerial dogfights in real fighter planes; Cory and Mikey race to get ready for the D-Day jump.

The team in Bute Inlet continues to follow new leads in search of answers regarding a missing or murdered prospector, while David Muise inches closer to gold in Pitt Lake.

Drivers head out one last time during the spring thaw; Steph Custance slides into trees; Todd Dewey struggles with a load on a twisty trail; Art Burke retrieves a heavy bulldozer; Reno Ward's truck dies on the ice; Lisa Kelly gets an emergency call.

Buffalo's top guns, rookies, and vets go to California for aerial dogfights in real fighter planes; Cory and Mikey race to get ready for the D-Day jump.

Rick flies across the pond to look at an epic "Star Wars" collection, including an iconic prop from the movie; a seller phones home with everyone's favorite Ewok; a new employee at the shop works with Corey to make a deal on a Planters jar.

Tom instructs young Hank on some essential skills; newlyweds Jake and Anika hunt elk in the bone- chilling cold; Paul takes on an infestation of nuisance badgers; Ray uses bushcraft technology to haul his elk meat out of the backcountry.

Leavenworth, located 25-miles northwest of Kansas City, K.S., was the largest maximum-security federal prison in the United States for over a hundred years; Carl Panzram, Robert Stroud and Tommy Silverstein share stories of life behind its walls.

Dannemora prison opens in 1845 as a source of free labor for the local mines; Kenneth Kimes takes a Court TV producer hostage; Tupac Shakur stirs up trouble; Richard Matt and David Sweat attempt to escape.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go; but the Lakota leader, Sitting Bull, alongside Crazy Horse, organizes an unprecedented resistance movement.

As the team performs a massive, multi-focused experiment, they complete an operation that may reveal the ultimate answers on Skinwalker Ranch.

Tom instructs young Hank on some essential skills; newlyweds Jake and Anika hunt elk in the bone- chilling cold; Paul takes on an infestation of nuisance badgers; Ray uses bushcraft technology to haul his elk meat out of the backcountry.

Rick flies across the pond to look at an epic "Star Wars" collection, including an iconic prop from the movie; a seller phones home with everyone's favorite Ewok; a new employee at the shop works with Corey to make a deal on a Planters jar.

Leavenworth, located 25-miles northwest of Kansas City, K.S., was the largest maximum-security federal prison in the United States for over a hundred years; Carl Panzram, Robert Stroud and Tommy Silverstein share stories of life behind its walls.

Dannemora prison opens in 1845 as a source of free labor for the local mines; Kenneth Kimes takes a Court TV producer hostage; Tupac Shakur stirs up trouble; Richard Matt and David Sweat attempt to escape.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go; but the Lakota leader, Sitting Bull, alongside Crazy Horse, organizes an unprecedented resistance movement.

Leavenworth, located 25-miles northwest of Kansas City, K.S., was the largest maximum-security federal prison in the United States for over a hundred years; Carl Panzram, Robert Stroud and Tommy Silverstein share stories of life behind its walls.

Dannemora prison opens in 1845 as a source of free labor for the local mines; Kenneth Kimes takes a Court TV producer hostage; Tupac Shakur stirs up trouble; Richard Matt and David Sweat attempt to escape.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go; but the Lakota leader, Sitting Bull, alongside Crazy Horse, organizes an unprecedented resistance movement.

Rick flies across the pond to look at an epic "Star Wars" collection, including an iconic prop from the movie; a seller phones home with everyone's favorite Ewok; a new employee at the shop works with Corey to make a deal on a Planters jar.

As the team performs a massive, multi-focused experiment, they complete an operation that may reveal the ultimate answers on Skinwalker Ranch.

Tom instructs young Hank on some essential skills; newlyweds Jake and Anika hunt elk in the bone- chilling cold; Paul takes on an infestation of nuisance badgers; Ray uses bushcraft technology to haul his elk meat out of the backcountry.

As the team performs a massive, multi-focused experiment, they complete an operation that may reveal the ultimate answers on Skinwalker Ranch.

A hidden 1940s map reveals new clues pointing to the motherlode; the team races season-ending weather through unexplored terrain to find an X that marks the spot where Slumach possibly found his gold.

On their first runs of the new season, Lisa is forced to stop when the unrelenting road knocks her engine apart; Todd attempts an ambitious bush fix to muscle his load back onto the trailer.

Joe refuses to fly his DC-3 into the drop zone, threatening Mikey's D-Day tribute parachute jump.

A hidden 1940s map reveals new clues pointing to the motherlode; the team races season-ending weather through unexplored terrain to find an X that marks the spot where Slumach possibly found his gold.

On their first runs of the new season, Lisa is forced to stop when the unrelenting road knocks her engine apart; Todd attempts an ambitious bush fix to muscle his load back onto the trailer.

Joe refuses to fly his DC-3 into the drop zone, threatening Mikey's D-Day tribute parachute jump.

Rick is in Chicago where he has a run-in with a wrestling legend and a chance to clinch a Michael Jordan championship jersey; Chum looks to score big on a 300-year-old violin; a vintage Batman playhouse places Corey and Chum in a betting mood.

Tom packs a traditional muzzleloader on a winter deer hunt with Sean and Hank; Jake and Anika complete a successful elk hunt with a backbreaking pack out; Aron and Jen cut down dead trees that threaten to destroy their cabin.

Journalist Tony Harris investigates some of the strange underwater anomalies discovered off the Florida coast in the Bermuda Triangle; Tony and a team of experts analyze evidence of similar discoveries from around the globe and pass a verdict.

Sitting Bull and Crazy Horse face George Armstrong Custer and the Seventh Cavalry in the battle of Little Bighorn; when their triumph over the U.S. Army fails to end the war they must continue the fight to preserve the Lakota way of life.

After the team's final experiment of the year, stunning revelations are made all across Skinwalker Ranch.

Tom packs a traditional muzzleloader on a winter deer hunt with Sean and Hank; Jake and Anika complete a successful elk hunt with a backbreaking pack out; Aron and Jen cut down dead trees that threaten to destroy their cabin.

Rick is in Chicago where he has a run-in with a wrestling legend and a chance to clinch a Michael Jordan championship jersey; Chum looks to score big on a 300-year-old violin; a vintage Batman playhouse places Corey and Chum in a betting mood.

Journalist Tony Harris investigates some of the strange underwater anomalies discovered off the Florida coast in the Bermuda Triangle; Tony and a team of experts analyze evidence of similar discoveries from around the globe and pass a verdict.

Sitting Bull and Crazy Horse face George Armstrong Custer and the Seventh Cavalry in the battle of Little Bighorn; when their triumph over the U.S. Army fails to end the war they must continue the fight to preserve the Lakota way of life.

Journalist Tony Harris investigates some of the strange underwater anomalies discovered off the Florida coast in the Bermuda Triangle; Tony and a team of experts analyze evidence of similar discoveries from around the globe and pass a verdict.

Sitting Bull and Crazy Horse face George Armstrong Custer and the Seventh Cavalry in the battle of Little Bighorn; when their triumph over the U.S. Army fails to end the war they must continue the fight to preserve the Lakota way of life.

Rick is in Chicago where he has a run-in with a wrestling legend and a chance to clinch a Michael Jordan championship jersey; Chum looks to score big on a 300-year-old violin; a vintage Batman playhouse places Corey and Chum in a betting mood.

After the team's final experiment of the year, stunning revelations are made all across Skinwalker Ranch.

Tom packs a traditional muzzleloader on a winter deer hunt with Sean and Hank; Jake and Anika complete a successful elk hunt with a backbreaking pack out; Aron and Jen cut down dead trees that threaten to destroy their cabin.

After the team's final experiment of the year, stunning revelations are made all across Skinwalker Ranch.

It's up to Adam to push forward and guide the team through the uncharted terrain of Corbold Canyon.

Lisa's truck loses all heat as temperatures plummet toward -40, forcing her to seek help from Scooter; when the two competitive drivers meet for the first time, they make a bet that changes the course of the season.

The fundamental creation of the wheel helps shape the human experience, but if the wheel suddenly stopped working and society lost the greatest, game-changing accomplishments made using wheel technology, the world would be vastly different.

It's up to Adam to push forward and guide the team through the uncharted terrain of Corbold Canyon.

Lisa's truck loses all heat as temperatures plummet toward -40, forcing her to seek help from Scooter; when the two competitive drivers meet for the first time, they make a bet that changes the course of the season.

The fundamental creation of the wheel helps shape the human experience, but if the wheel suddenly stopped working and society lost the greatest, game-changing accomplishments made using wheel technology, the world would be vastly different.

Rick heads to Boston to check out an iconic warship; a Paul McCartney-signed guitar; a curious corkscrew collection; Rick gets a lead on an Apple 1, and he has to decide if he wants a byte.

Eustace and his neighbor train a stubborn stallion; Jake and his team of dogs successfully run off their first mountain lion of the season; Paul tracks and kills a young buck; Aron hunts for moose, while Jen fishes for rainbow trout.

A clue to solving the 230-year-old Oak Island mystery may be a lead cross, whose design has been found not only on the island, but all across the globe.

Kennedy navigates his formative years, including his time in school, his relationship with his family, and his early interests in history and politics.

After the United States joins the war against Nazi Germany and Japan, Jack joins the Navy and is deployed to the Pacific.

As the team relaunches their investigation on Skinwalker Ranch, they are surrounded by a phenomenon.

Eustace and his neighbor train a stubborn stallion; Jake and his team of dogs successfully run off their first mountain lion of the season; Paul tracks and kills a young buck; Aron hunts for moose, while Jen fishes for rainbow trout.

Rick heads to Boston to check out an iconic warship; a Paul McCartney-signed guitar; a curious corkscrew collection; Rick gets a lead on an Apple 1, and he has to decide if he wants a byte.

A clue to solving the 230-year-old Oak Island mystery may be a lead cross, whose design has been found not only on the island, but all across the globe.

Kennedy navigates his formative years, including his time in school, his relationship with his family, and his early interests in history and politics.

After the United States joins the war against Nazi Germany and Japan, Jack joins the Navy and is deployed to the Pacific.

A clue to solving the 230-year-old Oak Island mystery may be a lead cross, whose design has been found not only on the island, but all across the globe.

Kennedy navigates his formative years, including his time in school, his relationship with his family, and his early interests in history and politics.

After the United States joins the war against Nazi Germany and Japan, Jack joins the Navy and is deployed to the Pacific.

Rick heads to Boston to check out an iconic warship; a Paul McCartney-signed guitar; a curious corkscrew collection; Rick gets a lead on an Apple 1, and he has to decide if he wants a byte.

As the team relaunches their investigation on Skinwalker Ranch, they are surrounded by a phenomenon.

Eustace and his neighbor train a stubborn stallion; Jake and his team of dogs successfully run off their first mountain lion of the season; Paul tracks and kills a young buck; Aron hunts for moose, while Jen fishes for rainbow trout.

As the team relaunches their investigation on Skinwalker Ranch, they are surrounded by a phenomenon.

According to a 1980s author and historian, the Spanish have a long and hidden history of gold exploration in Pitt Lake, and Slumach found their cache.

Todd returns to face an old nemesis that once defeated him and destroyed his truck, Asheweig Road; Lisa tackles the longest run of the season so far, but disaster strikes when a fire breaks out beneath her truck.

Gold, the shiny precious metal that has been cherished through all recorded time, is vital to the modern world; if gold was suddenly stripped away, the technological and cultural world would be left reeling.

According to a 1980s author and historian, the Spanish have a long and hidden history of gold exploration in Pitt Lake, and Slumach found their cache.

Todd returns to face an old nemesis that once defeated him and destroyed his truck, Asheweig Road; Lisa tackles the longest run of the season so far, but disaster strikes when a fire breaks out beneath her truck.

Gold, the shiny precious metal that has been cherished through all recorded time, is vital to the modern world; if gold was suddenly stripped away, the technological and cultural world would be left reeling.

A trophy awarded to retired NBA basketball player Julius "Dr. J" Erving; a WWII bombsight; some antique quack medicine bottles; a little coin nicknamed the Scarface.

Tom and Nancy make a special buckskin vest for Hank; Jake's snowmobile breaks down in the heart of Lion Alley; Paul takes on a neighbor's beaver and muskrat problem.

Lisa Kelly finds herself in a real jam after jackknifing her truck deep in the back-country; Alex Debogorski gets more than he bargained for when he falls through a patch of thin ice; Todd Dewey comes to the aid of a stranded trucker.

One participant races to find the salmon run before it ends, while another undertakes an epic journey; one of the survivalists tries to combat nature's fury head on.

While some of the participants push themselves to ensure long-term survival, others question their ability to endure.

When the big, invisible bubble raises new questions for the team, possible answers suddenly fall from the sky.

Tom and Nancy make a special buckskin vest for Hank; Jake's snowmobile breaks down in the heart of Lion Alley; Paul takes on a neighbor's beaver and muskrat problem.

A trophy awarded to retired NBA basketball player Julius "Dr. J" Erving; a WWII bombsight; some antique quack medicine bottles; a little coin nicknamed the Scarface.