Police search for the killer of an elderly upscale Toronto couple.

The largest police investigation of the decade lasted 23 days to catch a sniper who terrorized Washington, D. C. residents.

Differences over how to enjoy life in a rural neighborhood quickly escalate into a feud that comes to a bloody end on the road where it began.

A serial rapist stalks elderly women for nearly 20 years before escalating to murder.

The team questions a man's motives when he violently counters drug dealers vandalizing the bar he patronizes.

Differences over how to enjoy life in a rural neighborhood quickly escalate into a feud that comes to a bloody end on the road where it began.

A serial rapist stalks elderly women for nearly 20 years before escalating to murder.

The team questions a man's motives when he violently counters drug dealers vandalizing the bar he patronizes.

Differences over how to enjoy life in a rural neighborhood quickly escalate into a feud that comes to a bloody end on the road where it began.

The team questions a man's motives when he violently counters drug dealers vandalizing the bar he patronizes.

The Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty, live, love, work and play in a leafy Maryland suburb just outside of Washington D.C.

Casey further investigates a motorcycle accident at the request of the victim's son; Kidd, Foster and Brett bond while helping Kidd fix a mistake; Mouch and Otis have a falling out after Otis' teasing hits a sore spot.

Cruz leads the charge in getting the firehouse to gear up for the Polar Plunge; Herrmann has a hard time bouncing back after dealing with a tough call; Foster's personal relationships begin to interfere with her job.

Brett, Foster and Kidd take a road trip to Indiana and encounter an accident involving a boys' hockey team that leaves them scrambling and relying on their instincts to save the injured; the rest of Firehouse 51 competes in the annual chili cook-off.

A spate of robberies comes to light after a firehouse lockbox key goes missing; Sgt. Hank Voight suspects a firefighter may be involved, and with Boden's support, he recruits Cruz to go under cover to help sniff out any suspicious activity.

Casey struggles after experiencing a narrow miss on a call; Otis wins a unique sporting opportunity in a raffle; Grissom turns to Severide for assistance when the mayor's office sends a task force to Firehouse 51.

Tensions run high between Casey and Herrmann after the firehouse responds to an apartment complex fire; after discovering something extremely suspicious during the call, Kidd and Severide do some investigating and get CPD on the case.

Severide gets angry at Cruz when he feels his orders were disobeyed in the field; Boden reconnects with an old high school friend during a call to a house fire. Herrmann has issues when one of his favorite knick-knacks from Molly's goes missing.

Casey further investigates a motorcycle accident at the request of the victim's son; Kidd, Foster and Brett bond while helping Kidd fix a mistake; Mouch and Otis have a falling out after Otis' teasing hits a sore spot.

Cruz leads the charge in getting the firehouse to gear up for the Polar Plunge; Herrmann has a hard time bouncing back after dealing with a tough call; Foster's personal relationships begin to interfere with her job.

Brett, Foster and Kidd take a road trip to Indiana and encounter an accident involving a boys' hockey team that leaves them scrambling and relying on their instincts to save the injured; the rest of Firehouse 51 competes in the annual chili cook-off.

Tensions run high between Casey and Herrmann after the firehouse responds to an apartment complex fire; after discovering something extremely suspicious during the call, Kidd and Severide do some investigating and get CPD on the case.

Casey struggles after experiencing a narrow miss on a call; Otis wins a unique sporting opportunity in a raffle; Grissom turns to Severide for assistance when the mayor's office sends a task force to Firehouse 51.

Tensions run high between Casey and Herrmann after the firehouse responds to an apartment complex fire; after discovering something extremely suspicious during the call, Kidd and Severide do some investigating and get CPD on the case.

Severide gets angry at Cruz when he feels his orders were disobeyed in the field; Boden reconnects with an old high school friend during a call to a house fire. Herrmann has issues when one of his favorite knick-knacks from Molly's goes missing.

Casey further investigates a motorcycle accident at the request of the victim's son; Kidd, Foster and Brett bond while helping Kidd fix a mistake; Mouch and Otis have a falling out after Otis' teasing hits a sore spot.

New neighbors disrupt the harmony that has existed between residents for years; alliances change and terror reigns until a winter storm puts a bloody end to the feud.

A sniper targeting abortion doctors turns murderous and a DNA "needle in a haystack" identifies the gunman.

A highly trained sniper booby-traps an arena that is slated to be destroyed.

New neighbors disrupt the harmony that has existed between residents for years; alliances change and terror reigns until a winter storm puts a bloody end to the feud.

A sniper targeting abortion doctors turns murderous and a DNA "needle in a haystack" identifies the gunman.

A highly trained sniper booby-traps an arena that is slated to be destroyed.

New neighbors disrupt the harmony that has existed between residents for years; alliances change and terror reigns until a winter storm puts a bloody end to the feud.

A highly trained sniper booby-traps an arena that is slated to be destroyed.

Will and Natalie battle for their lives after a car accident; an investigation is launched following the suspicious death of Cornelius Rhodes; Maggie receives life-changing news; Dr. Charles cuts his honeymoon short to tend to a patient.

Joey has a surprising reunion with an old pal; someone's deceit causes heartbreak for two couples; a duo deepens their relationship; Vanessa's new endeavor causes a stir at the country club.

When a car unexpectedly smashes through the ambulance bay doors, Dr. Choi makes some difficult decisions in an effort to save a worker trapped beneath the wreckage and April, who's also in danger.

An alarming phone call prompts Rhodes to rush out of an important surgery; Halstead comes to the aid of an FBI agent who is brought into the ED; Manning and Choi find themselves on opposite sides of a disagreement over doctor-patient confidentiality.

The hospital goes into lockdown mode when a man with a gun holds medical staff hostage; Goodwin is forced to make a tough decision; Dr. Rhodes begins to realize his time with his father is getting short.

Dr. Charles and Dr. Manning disagree on how to handle a patient who they discover is poisoning herself; Dr. Rhodes throws some serious accusations at Dr. Bekker; Dr. Halstead has suspicions about Natalie's new boyfriend; Dr. Choi tends to Bernie.

Caroline shares news that forces Dr. Charles to make a serious decision about their relationship; Maggie meets her sister's new boyfriend but danger may lie ahead; Dr. Rhodes experiences a huge loss; Dr. Choi and April face an unexpected challenge.

Dr. Charles and Caroline set some major plans; Ava fights to keep her relationship with Connor; Agent Lee informs Will of news that may put his life in danger.

Will and Natalie battle for their lives after a car accident; an investigation is launched following the suspicious death of Cornelius Rhodes; Maggie receives life-changing news; Dr. Charles cuts his honeymoon short to tend to a patient.

When a car unexpectedly smashes through the ambulance bay doors, Dr. Choi makes some difficult decisions in an effort to save a worker trapped beneath the wreckage and April, who's also in danger.

An alarming phone call prompts Rhodes to rush out of an important surgery; Halstead comes to the aid of an FBI agent who is brought into the ED; Manning and Choi find themselves on opposite sides of a disagreement over doctor-patient confidentiality.

The hospital goes into lockdown mode when a man with a gun holds medical staff hostage; Goodwin is forced to make a tough decision; Dr. Rhodes begins to realize his time with his father is getting short.

Dr. Charles and Dr. Manning disagree on how to handle a patient who they discover is poisoning herself; Dr. Rhodes throws some serious accusations at Dr. Bekker; Dr. Halstead has suspicions about Natalie's new boyfriend; Dr. Choi tends to Bernie.

Caroline shares news that forces Dr. Charles to make a serious decision about their relationship; Maggie meets her sister's new boyfriend but danger may lie ahead; Dr. Rhodes experiences a huge loss; Dr. Choi and April face an unexpected challenge.

Dr. Charles and Caroline set some major plans; Ava fights to keep her relationship with Connor; Agent Lee informs Will of news that may put his life in danger.

Will and Natalie battle for their lives after a car accident; an investigation is launched following the suspicious death of Cornelius Rhodes; Maggie receives life-changing news; Dr. Charles cuts his honeymoon short to tend to a patient.

When a car unexpectedly smashes through the ambulance bay doors, Dr. Choi makes some difficult decisions in an effort to save a worker trapped beneath the wreckage and April, who's also in danger.

Neighbors take sides after someone decides to build a dream home on their quiet street; longtime friends turn into hardcore enemies and death is right around the corner.

A small town encounters satanic rituals and a savage killer.

When a young man is held captive by a carjacker, the team must figure out how to get in without hurting the baby in the car.

Neighbors take sides after someone decides to build a dream home on their quiet street; longtime friends turn into hardcore enemies and death is right around the corner.

A small town encounters satanic rituals and a savage killer.

When a young man is held captive by a carjacker, the team must figure out how to get in without hurting the baby in the car.

Neighbors take sides after someone decides to build a dream home on their quiet street; longtime friends turn into hardcore enemies and death is right around the corner.

When a young man is held captive by a carjacker, the team must figure out how to get in without hurting the baby in the car.

"Beyond the Gates" is set in a leafy Maryland suburb just outside of Washington D.C., and in one the most affluent African American counties in the United States. At the center of this community are the Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty. But behind these pristine walls and lush, manicured gardens are juicy secrets and scandals waiting to be uncovered. And those that live outside these gates are watching closely. These are the places where the characters live, love, work and play. Those who have "made it" and those who haven't are all trying to navigate life - and some with more grace than others.

A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Despite the case being closed, Bobby is determined to prove his Alcoholics Anonymous sponsor was murdered and bring his killer to justice; Buck struggles with his post-traumatic stress.

The 118 faces emergencies at a spin class and a hair salon; a husband and wife find themselves in a compromising position; Buck discovers new cognitive abilities; Hen and Karen find out Denny has been seeing his biological father.

The 118 race to emergencies at a commercial bakery and a bodybuilding competition; Bobby's annual performance reviews send Chimney to the firefighter academy, where he runs into a familiar face; Eddie's aunt gets involved in his personal life.

A fire breaks out in an accountant's office and a car crashes into a "living funeral"; Athena is shocked when a suspect dies in her custody minutes after she arrests him; Buck is attracted to a death doula; Maddie and Chimney are audited by the IRS.

The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream suddenly becomes a painful reality; Athena and Maddie team up to find a missing boy in a crowded mall.

A wedding proposal tragically intersects with a bank robbery; a bride is literally stuck on her way to the altar; Athena talks a victim through her grief; Buck finds a surprise visitor on his doorstep.

A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Despite the case being closed, Bobby is determined to prove his Alcoholics Anonymous sponsor was murdered and bring his killer to justice; Buck struggles with his post-traumatic stress.

The 118 faces emergencies at a spin class and a hair salon; a husband and wife find themselves in a compromising position; Buck discovers new cognitive abilities; Hen and Karen find out Denny has been seeing his biological father.

The 118 race to emergencies at a commercial bakery and a bodybuilding competition; Bobby's annual performance reviews send Chimney to the firefighter academy, where he runs into a familiar face; Eddie's aunt gets involved in his personal life.

A fire breaks out in an accountant's office and a car crashes into a "living funeral"; Athena is shocked when a suspect dies in her custody minutes after she arrests him; Buck is attracted to a death doula; Maddie and Chimney are audited by the IRS.

The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream suddenly becomes a painful reality; Athena and Maddie team up to find a missing boy in a crowded mall.

A wedding proposal tragically intersects with a bank robbery; a bride is literally stuck on her way to the altar; Athena talks a victim through her grief; Buck finds a surprise visitor on his doorstep.

A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Despite the case being closed, Bobby is determined to prove his Alcoholics Anonymous sponsor was murdered and bring his killer to justice; Buck struggles with his post-traumatic stress.

In a tight-knit community, a new family commits a slight against a community member causing all of their neighbors to turn against them and leading to an explosive conclusion.

Top criminal investigators, forensic scientists and behavioral analysts track three serial killers.

The team tracks a woman (Kelly Rowan) who has kidnapped two young girls.

In a tight-knit community, a new family commits a slight against a community member causing all of their neighbors to turn against them and leading to an explosive conclusion.

Top criminal investigators, forensic scientists and behavioral analysts track three serial killers.

The team tracks a woman (Kelly Rowan) who has kidnapped two young girls.

In a tight-knit community, a new family commits a slight against a community member causing all of their neighbors to turn against them and leading to an explosive conclusion.

The team tracks a woman (Kelly Rowan) who has kidnapped two young girls.

"Beyond the Gates" is set in a leafy Maryland suburb just outside of Washington D.C., and in one the most affluent African American counties in the United States. At the center of this community are the Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty. But behind these pristine walls and lush, manicured gardens are juicy secrets and scandals waiting to be uncovered. And those that live outside these gates are watching closely. These are the places where the characters live, love, work and play. Those who have "made it" and those who haven't are all trying to navigate life - and some with more grace than others.

A power outage at Med puts multiple patients at risk and tests the skills of the staff and their enthusiastic med students; Natalie returns following her traumatic brain injury; Ethan and April wonder if a family is in their future.

Dr. Choi and Dr. Charles have difficult decisions to make as a dying man tries to preserve his life with a controversial scientific method; Dr. Marcel and April clash over how to handle a mysterious patient; Will questions Natalie's capabilities.

An entire apartment complex is forced into quarantine when cases of a deadly virus turn into an epidemic; P.D. chases a lead that could point to a case of bioterrorism, and Will gets dangerously close to the suspect.

Dr. Choi and Dr. Marcel don't see eye to eye over the treatment of a patient's chronic pain; rumors circulate about Maggie; Dr. Manning works to help a young boy, but she is challenged by his parents, who believe in only using holistic remedies.

Dr. Manning's actions with a patient lead to serious repercussions; April and Noah disagree over a patient who is injured after a beating; Dr. Charles is visited by a childhood friend.

Dr. Charles and Dr. Halstead sink their teeth into a case; Dr. Marcel and Maggie throw a traditional crawfish boil for the staff; a new relationship blossoms while another is left on rocky ground.

Maggie gets unsettling news about a new friend and breaks protocol to support him; one of the doctors from the Med family is rushed into emergency surgery after a violent assault; a social media influencer lets his users vote on medical advice.

Featuring the designers, as they head to TMU's Design and Technology Lab to create futuristic looks for the year 2125.

Dr. Choi and Dr. Charles have difficult decisions to make as a dying man tries to preserve his life with a controversial scientific method; Dr. Marcel and April clash over how to handle a mysterious patient; Will questions Natalie's capabilities.

An entire apartment complex is forced into quarantine when cases of a deadly virus turn into an epidemic; P.D. chases a lead that could point to a case of bioterrorism, and Will gets dangerously close to the suspect.

Dr. Choi and Dr. Marcel don't see eye to eye over the treatment of a patient's chronic pain; rumors circulate about Maggie; Dr. Manning works to help a young boy, but she is challenged by his parents, who believe in only using holistic remedies.

Dr. Manning's actions with a patient lead to serious repercussions; April and Noah disagree over a patient who is injured after a beating; Dr. Charles is visited by a childhood friend.

Dr. Charles and Dr. Halstead sink their teeth into a case; Dr. Marcel and Maggie throw a traditional crawfish boil for the staff; a new relationship blossoms while another is left on rocky ground.

Maggie gets unsettling news about a new friend and breaks protocol to support him; one of the doctors from the Med family is rushed into emergency surgery after a violent assault; a social media influencer lets his users vote on medical advice.

Featuring the designers, as they head to TMU's Design and Technology Lab to create futuristic looks for the year 2125.

Mixing business with pleasure spells murder for neighboring best friends.

Knowledge of insects by a forensic entomologist leads police to the killer of a wife and mother of two.

Two brothers become involved with a white supremacy group planning a terrorist attack.

Mixing business with pleasure spells murder for neighboring best friends.

Knowledge of insects by a forensic entomologist leads police to the killer of a wife and mother of two.

Two brothers become involved with a white supremacy group planning a terrorist attack.

Mixing business with pleasure spells murder for neighboring best friends.

Two brothers become involved with a white supremacy group planning a terrorist attack.

"Beyond the Gates" is set in a leafy Maryland suburb just outside of Washington D.C., and in one the most affluent African American counties in the United States. At the center of this community are the Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty. But behind these pristine walls and lush, manicured gardens are juicy secrets and scandals waiting to be uncovered. And those that live outside these gates are watching closely. These are the places where the characters live, love, work and play. Those who have "made it" and those who haven't are all trying to navigate life - and some with more grace than others.

Officer Nolan and Sgt. Grey are paired up for the day on patrol; Officer Chen is paired up with Capt. Andersen, and Officer Bradford tells Chen to protect her at all costs.

An unscheduled visit by the vice president of the United States puts the station on high alert; the Secret Service tasks Nolan and Bishop with checking out a possible threat while the rest of the team tries to keep the streets safe for his visit.

The team is on high alert during the most dangerous day of the year, Valentine's Day; officer Nolan invites everyone over for a party now that he is single.

A large sum of money used in a drug bust goes missing; the rookies become the prime suspects, as they had previously discussed what they would do with the money.

The rookies are really put to the test when they are forced to make all decisions while on patrol; officer Nolan tries to prove he has been progressing faster than the other rookies to justify his desire of becoming a detective within five years.

An unscheduled visit by the vice president of the United States puts the station on high alert; the Secret Service tasks Nolan and Bishop with checking out a possible threat while the rest of the team tries to keep the streets safe for his visit.

When chasing down leads about his father's past, Colter meets a man desperate to find his daughter who vanished while working a courier route; Colter is pulled into an orbit of a wealthy family and their ruthless fixer.

The team is on high alert during the most dangerous day of the year, Valentine's Day; officer Nolan invites everyone over for a party now that he is single.

An unscheduled visit by the vice president of the United States puts the station on high alert; the Secret Service tasks Nolan and Bishop with checking out a possible threat while the rest of the team tries to keep the streets safe for his visit.

When chasing down leads about his father's past, Colter meets a man desperate to find his daughter who vanished while working a courier route; Colter is pulled into an orbit of a wealthy family and their ruthless fixer.

A large sum of money used in a drug bust goes missing; the rookies become the prime suspects, as they had previously discussed what they would do with the money.

The rookies are really put to the test when they are forced to make all decisions while on patrol; officer Nolan tries to prove he has been progressing faster than the other rookies to justify his desire of becoming a detective within five years.

A large sum of money used in a drug bust goes missing; the rookies become the prime suspects, as they had previously discussed what they would do with the money.

The rookies are really put to the test when they are forced to make all decisions while on patrol; officer Nolan tries to prove he has been progressing faster than the other rookies to justify his desire of becoming a detective within five years.

The team is on high alert during the most dangerous day of the year, Valentine's Day; officer Nolan invites everyone over for a party now that he is single.

A serial killer in Spokane, Wash. murders prostitutes and leaves a bag with a smiley face on the victim's head.

Officials look to state-of-the-art DNA analysis to help capture a serial killer in the Louisiana State University area of Baton Rouge.

Investigating a series of fires in California's Sam Joaquin Valley that killed four, investigators determine a respected arson investigator may be the arsonist.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

The disastrous cruise continues when Bobby and Athena respond to the ship's explosion, racing to aid injured passengers; Hen questions her instincts in a life-taking call and grows concerned about Athena and Bobby's whereabouts.

With each moment becoming critical as the ship flips upside down, Athena and Bobby take charge, seeking methods for rescue while navigating efforts to guide survivors to safety; Hen defies protocols in her search for Bobby and Athena.

Upon her return to shore, Athena's son finds himself in trouble with the law; Buck grows envious as Eddie forms a close bond with someone else; the team rescues a woman who's stuck on receiving a rose at an iconic mansion.

Hen and Karen welcome a new addition to their family; a call unfolds involving a person's limb that's taken on a mind of its own; Eddie and Marisol take a closer look at their relationship; Buck navigates his new feelings.

After years of anticipation, Maddie and Chimney's long-awaited wedding day arrives; when the groom mysteriously vanishes, the 118 races against time to ensure he doesn't miss the most crucial day of his life.

Maddie and Athena investigate a case surrounding an abducted mother and child; Hen and Karen learn more about Mara's family history; Eddie grapples with unresolved feelings for someone from his past.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

The disastrous cruise continues when Bobby and Athena respond to the ship's explosion, racing to aid injured passengers; Hen questions her instincts in a life-taking call and grows concerned about Athena and Bobby's whereabouts.

With each moment becoming critical as the ship flips upside down, Athena and Bobby take charge, seeking methods for rescue while navigating efforts to guide survivors to safety; Hen defies protocols in her search for Bobby and Athena.

Upon her return to shore, Athena's son finds himself in trouble with the law; Buck grows envious as Eddie forms a close bond with someone else; the team rescues a woman who's stuck on receiving a rose at an iconic mansion.

Hen and Karen welcome a new addition to their family; a call unfolds involving a person's limb that's taken on a mind of its own; Eddie and Marisol take a closer look at their relationship; Buck navigates his new feelings.

After years of anticipation, Maddie and Chimney's long-awaited wedding day arrives; when the groom mysteriously vanishes, the 118 races against time to ensure he doesn't miss the most crucial day of his life.

Maddie and Athena investigate a case surrounding an abducted mother and child; Hen and Karen learn more about Mara's family history; Eddie grapples with unresolved feelings for someone from his past.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

The disastrous cruise continues when Bobby and Athena respond to the ship's explosion, racing to aid injured passengers; Hen questions her instincts in a life-taking call and grows concerned about Athena and Bobby's whereabouts.

With each moment becoming critical as the ship flips upside down, Athena and Bobby take charge, seeking methods for rescue while navigating efforts to guide survivors to safety; Hen defies protocols in her search for Bobby and Athena.

Upon her return to shore, Athena's son finds himself in trouble with the law; Buck grows envious as Eddie forms a close bond with someone else; the team rescues a woman who's stuck on receiving a rose at an iconic mansion.

Hen and Karen welcome a new addition to their family; a call unfolds involving a person's limb that's taken on a mind of its own; Eddie and Marisol take a closer look at their relationship; Buck navigates his new feelings.

A serial killer in Spokane, Wash. murders prostitutes and leaves a bag with a smiley face on the victim's head.

Officials look to state-of-the-art DNA analysis to help capture a serial killer in the Louisiana State University area of Baton Rouge.

Investigators work to solve a double homicide in the small town of Hudson, Wisc.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A phantom white supremacist sect takes credits for bombings and bank robberies in Spokane, Wash., but FBI forensic photo analysts clears the picture.

A horrible storm wreaks havoc on Chicago and impacts Firehouse 51 when the power goes off; when a little boy mysteriously shows up at the station, everyone works together to uncover who he belongs to; Foster and Kidd argue about Severide.

Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon; Mouch, Herrmann, Otis and Kidd make a startling discovery while tracking down the missing piercing nozzle from Engine 27.

A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

Severide and Kidd continue to investigate Benny's old arson case; unexpected news leads Brett to ponder a big decision; all hell breaks loose.

The mattress factory fire spirals out of control; truck and squad lay it on the line in hopes of getting the trapped victims out alive.

Casey struggles to get Boden to sign off on an energetic new recruit; Foster extends an olive branch to her irritating new medic; Otis inspires Herrmann to seek new partners at Molly's; Brett realizes life in Fowlerton will take some getting used to.

Brett and Foster question the suspicious circumstances surrounding an attack at a juvenile detention center; a convoluted new technology at Firehouse 51 tests everybody's patience; Kidd is chosen to represent the district at a leadership conference.

A horrible storm wreaks havoc on Chicago and impacts Firehouse 51 when the power goes off; when a little boy mysteriously shows up at the station, everyone works together to uncover who he belongs to; Foster and Kidd argue about Severide.

Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon; Mouch, Herrmann, Otis and Kidd make a startling discovery while tracking down the missing piercing nozzle from Engine 27.

A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

Severide and Kidd continue to investigate Benny's old arson case; unexpected news leads Brett to ponder a big decision; all hell breaks loose.

The mattress factory fire spirals out of control; truck and squad lay it on the line in hopes of getting the trapped victims out alive.

Casey struggles to get Boden to sign off on an energetic new recruit; Foster extends an olive branch to her irritating new medic; Otis inspires Herrmann to seek new partners at Molly's; Brett realizes life in Fowlerton will take some getting used to.

Brett and Foster question the suspicious circumstances surrounding an attack at a juvenile detention center; a convoluted new technology at Firehouse 51 tests everybody's patience; Kidd is chosen to represent the district at a leadership conference.

A horrible storm wreaks havoc on Chicago and impacts Firehouse 51 when the power goes off; when a little boy mysteriously shows up at the station, everyone works together to uncover who he belongs to; Foster and Kidd argue about Severide.

Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon; Mouch, Herrmann, Otis and Kidd make a startling discovery while tracking down the missing piercing nozzle from Engine 27.

A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire; Firehouse 51 celebrates a retirement party.

Severide and Kidd continue to investigate Benny's old arson case; unexpected news leads Brett to ponder a big decision; all hell breaks loose.

The mattress factory fire spirals out of control; truck and squad lay it on the line in hopes of getting the trapped victims out alive.

Investigators work to solve a double homicide in the small town of Hudson, Wisc.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

When the prime subject for four factory deaths has a perfect alibi, investigators use video analysis, timeline reconstruction and a 3-year old fingerprint to solve the crime.

A high school athlete threatens suicide after being kidnapped and beaten.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

When the prime subject for four factory deaths has a perfect alibi, investigators use video analysis, timeline reconstruction and a 3-year old fingerprint to solve the crime.

A high school athlete threatens suicide after being kidnapped and beaten.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

A high school athlete threatens suicide after being kidnapped and beaten.

"Beyond the Gates" is set in a leafy Maryland suburb just outside of Washington D.C., and in one the most affluent African American counties in the United States. At the center of this community are the Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty. But behind these pristine walls and lush, manicured gardens are juicy secrets and scandals waiting to be uncovered. And those that live outside these gates are watching closely. These are the places where the characters live, love, work and play. Those who have "made it" and those who haven't are all trying to navigate life - and some with more grace than others.

A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the dangerous situation; Severide suspects something bigger is happening.

Kidd must prove herself at the National Firefighter Leadership Conference, while the rest of Firehouse 51 is called to two eerily similar car wrecks; Mouch tries to keep the firehouse informed by starting a newsletter; Cruz deals with a heartbreak.

Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women's-only lounge. Firehouse 51 celebrates some good news.

Severide must make a tough decision about the future of his career at Firehouse 51; Herrmann deals with the consequences of his temper; Cruz is excited to demonstrate the Slamigan at the Firefighting Expo; Commissioner Grissom returns.

Severide starts off on the wrong foot at his Office of Fire Investigation assignment when, despite orders, he reopens an old case; Herrmann is on a mission to discover what caused an apartment fire; Kidd finds herself burning the candle at both ends.

An unexpected visit throws Casey for a loop; Severide sets out to exonerate a wrongly convicted arsonist; Kidd pays the price for burning the candle at both ends; Cruz goes on a mission to fix one of Otis's old toys.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise; Casey and Gallo hunt a missing piece of equipment; Brett and Foster find themselves at odds.

A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the dangerous situation; Severide suspects something bigger is happening.

Kidd must prove herself at the National Firefighter Leadership Conference, while the rest of Firehouse 51 is called to two eerily similar car wrecks; Mouch tries to keep the firehouse informed by starting a newsletter; Cruz deals with a heartbreak.

Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women's-only lounge. Firehouse 51 celebrates some good news.

Severide must make a tough decision about the future of his career at Firehouse 51; Herrmann deals with the consequences of his temper; Cruz is excited to demonstrate the Slamigan at the Firefighting Expo; Commissioner Grissom returns.

Severide starts off on the wrong foot at his Office of Fire Investigation assignment when, despite orders, he reopens an old case; Herrmann is on a mission to discover what caused an apartment fire; Kidd finds herself burning the candle at both ends.

An unexpected visit throws Casey for a loop; Severide sets out to exonerate a wrongly convicted arsonist; Kidd pays the price for burning the candle at both ends; Cruz goes on a mission to fix one of Otis's old toys.

Members of Firehouse 51 are dismayed to learn their boundaries have been redrawn to overlap with an adjacent station, and problems quickly arise; Casey and Gallo hunt a missing piece of equipment; Brett and Foster find themselves at odds.

A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the dangerous situation; Severide suspects something bigger is happening.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

Sixteen years after a college student is found raped and strangled on a buffalo bike path, DNA technology and other clues help catch the killer.

After his escape from a prison transport, the unit pursues a man accused of killing his child.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

Sixteen years after a college student is found raped and strangled on a buffalo bike path, DNA technology and other clues help catch the killer.

After his escape from a prison transport, the unit pursues a man accused of killing his child.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

After his escape from a prison transport, the unit pursues a man accused of killing his child.

"Beyond the Gates" is set in a leafy Maryland suburb just outside of Washington D.C., and in one the most affluent African American counties in the United States. At the center of this community are the Duprees, a powerful and prestigious multi-generational family that is the very definition of Black royalty. But behind these pristine walls and lush, manicured gardens are juicy secrets and scandals waiting to be uncovered. And those that live outside these gates are watching closely. These are the places where the characters live, love, work and play. Those who have "made it" and those who haven't are all trying to navigate life - and some with more grace than others.

April receives unfortunate news that makes her question her future with Ethan; Dr. Charles and Maggie see tough times on the horizon; Natalie's memory from the accident starts to return.

Dr. Halstead's world is thrown into turmoil when a former patient resurfaces; April has a secret she considers confessing to Ethan; Dr. Charles tries to maintain his focus during a difficult time.

After a major accident at O'Hare International Airport, the E.D. is concerned one of their own is in mortal danger; Will's proposal for a safe injection site goes to the board for consideration; Natalie and Goodwin become concerned for Gwen.