As the courageous firefighters, rescue squad and paramedics of Chicago Firehouse 51 head first into danger, bravely fighting to save the people of their city from peril, they also forge deep, unbreakable bonds with each other.

As the courageous firefighters, rescue squad and paramedics of Chicago Firehouse 51 head first into danger, bravely fighting to save the people of their city from peril, they also forge deep, unbreakable bonds with each other.

Following the tragic events in 2003, The Judge looks to Jack Ziegler to exact a plan of revenge.

As the courageous firefighters, rescue squad and paramedics of Chicago Firehouse 51 head first into danger, bravely fighting to save the people of their city from peril, they also forge deep, unbreakable bonds with each other.

Two California men are at each other's throats over access to a disputed road, and things progress from intimidation and property damage to one of the most shocking murders the area has ever seen.

When Dov walks into a robbery in progress and shoots a black teen, the community calls for him to be investigated.

A mission comes back to haunt Ed; a member of the team struggles to stay alive after getting caught in a sniper's fire.

Two California men are at each other's throats over access to a disputed road, and things progress from intimidation and property damage to one of the most shocking murders the area has ever seen.

When Dov walks into a robbery in progress and shoots a black teen, the community calls for him to be investigated.

A mission comes back to haunt Ed; a member of the team struggles to stay alive after getting caught in a sniper's fire.

Two California men are at each other's throats over access to a disputed road, and things progress from intimidation and property damage to one of the most shocking murders the area has ever seen.

When Dov walks into a robbery in progress and shoots a black teen, the community calls for him to be investigated.

A mission comes back to haunt Ed; a member of the team struggles to stay alive after getting caught in a sniper's fire.

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 recent 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 bloodthirsty 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.

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. 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 recent 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 bloodthirsty 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.

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. 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.

Bereaved over the loss of their son, a couple is thrilled when a family with two boys moves in across the street; however, the relationship soon sours, engulfing all of them in a conflict that ends in a deadly shooting.

Traci worries that she mishandled the investigation into a car accident that yielded a dead body; Chris realizes he has feelings for Gail.

The CEO of a mortgage company is taken hostage by three men; the team reluctantly looks for recruits to fill Jules' spot.

Bereaved over the loss of their son, a couple is thrilled when a family with two boys moves in across the street; however, the relationship soon sours, engulfing all of them in a conflict that ends in a deadly shooting.

Traci worries that she mishandled the investigation into a car accident that yielded a dead body; Chris realizes he has feelings for Gail.

The CEO of a mortgage company is taken hostage by three men; the team reluctantly looks for recruits to fill Jules' spot.

Bereaved over the loss of their son, a couple is thrilled when a family with two boys moves in across the street; however, the relationship soon sours, engulfing all of them in a conflict that ends in a deadly shooting.

Traci worries that she mishandled the investigation into a car accident that yielded a dead body; Chris realizes he has feelings for Gail.

The CEO of a mortgage company is taken hostage by three men; the team reluctantly looks for recruits to fill Jules' spot.

When the Hollywood Reservoir dam breaks, Bobby and the 118 race into action to save passengers on a city bus that has crashed into a building several stories in the air; the team adjusts to life as first responders during the pandemic.

In the aftermath of the dam break, massive mudslides wreak havoc throughout Los Angeles; Athena fights to save herself and an agoraphobic woman after her house collapses; a group of pregnant women trapped in a submerged house.

The team races to save a man under siege by his high-tech smart home; a yoga teacher loses her vision; Athena hunts down a bank robber disguised by COVID-19 protocols; members of the 118's crew prepare for an out-of-state mission.

Athena investigates a mysterious murder during a neighborhood block party; the 118 rush to save lives endangered by a bomb threat; Chimney has a hard time keeping secrets when Maddie and Buck's parents come to town.

The 118 races to save the lives of workers trapped in a factory fire; Maddie reveals a painful family secret that causes Buck to confront his childhood and answer why he is the daredevil he is today.

The 118 has a day from hell with a never-ending series of bizarre emergency calls; a man tapes himself to a freeway billboard; a restaurant manager destroys his own business; Eddie feels a spark with Christopher's former teacher.

A man gets pinned under a Humvee; a garage band rocks out too hard; Michael notices strange behavior at a nearby apartment; Hen's mother unexpectedly arrives and announces she is moving to Los Angeles.

When the Hollywood Reservoir dam breaks, Bobby and the 118 race into action to save passengers on a city bus that has crashed into a building several stories in the air; the team adjusts to life as first responders during the pandemic.

In the aftermath of the dam break, massive mudslides wreak havoc throughout Los Angeles; Athena fights to save herself and an agoraphobic woman after her house collapses; a group of pregnant women trapped in a submerged house.

The team races to save a man under siege by his high-tech smart home; a yoga teacher loses her vision; Athena hunts down a bank robber disguised by COVID-19 protocols; members of the 118's crew prepare for an out-of-state mission.

Athena investigates a mysterious murder during a neighborhood block party; the 118 rush to save lives endangered by a bomb threat; Chimney has a hard time keeping secrets when Maddie and Buck's parents come to town.

The 118 races to save the lives of workers trapped in a factory fire; Maddie reveals a painful family secret that causes Buck to confront his childhood and answer why he is the daredevil he is today.

The 118 has a day from hell with a never-ending series of bizarre emergency calls; a man tapes himself to a freeway billboard; a restaurant manager destroys his own business; Eddie feels a spark with Christopher's former teacher.

A man gets pinned under a Humvee; a garage band rocks out too hard; Michael notices strange behavior at a nearby apartment; Hen's mother unexpectedly arrives and announces she is moving to Los Angeles.

When the Hollywood Reservoir dam breaks, Bobby and the 118 race into action to save passengers on a city bus that has crashed into a building several stories in the air; the team adjusts to life as first responders during the pandemic.

An Appalachian couple is delighted when their neighbors return home after disappearing for 10 years, but they've changed for the worse, unleashing a campaign of endless intimidation and harassment that ultimately ends in a bloodbath.

Andy answers a domestic disturbance call to find the social worker on the scene is her estranged mother; Sam, Nick, Chris and Gail search for a mother and her two children; a stash of guns recovered by Detective Barber turns up on the streets.

The SRU is called to what appears to be a home invasion turned into a standoff, but team members soon realize the hostage-taker is no stranger to the family.

An Appalachian couple is delighted when their neighbors return home after disappearing for 10 years, but they've changed for the worse, unleashing a campaign of endless intimidation and harassment that ultimately ends in a bloodbath.

Andy answers a domestic disturbance call to find the social worker on the scene is her estranged mother; Sam, Nick, Chris and Gail search for a mother and her two children; a stash of guns recovered by Detective Barber turns up on the streets.

The SRU is called to what appears to be a home invasion turned into a standoff, but team members soon realize the hostage-taker is no stranger to the family.

An Appalachian couple is delighted when their neighbors return home after disappearing for 10 years, but they've changed for the worse, unleashing a campaign of endless intimidation and harassment that ultimately ends in a bloodbath.

Andy answers a domestic disturbance call to find the social worker on the scene is her estranged mother; Sam, Nick, Chris and Gail search for a mother and her two children; a stash of guns recovered by Detective Barber turns up on the streets.

The SRU is called to what appears to be a home invasion turned into a standoff, but team members soon realize the hostage-taker is no stranger to the family.

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, 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.

The team deals with the aftermath of a school bus crash; Dr. Charles worries Dr. Halstead is putting his medical license in jeopardy; Maggie helps a friend in need.

Two brothers in critical condition are rushed into the hospital by their parents, leaving Dr. Choi, April and Dr. Charles to piece together what actually transpired; Dr. Manning becomes suspicious of a new mother entering the E.D.

Dr. Manning and Dr. Marcel disagree over an abusive husband; Dr. Halstead struggles with ethics and his decision to work at the safe injection site; Dr. Charles and Elsa reveal a misdiagnosis that may change a family's life.

Dr. Charles and Dr. Manning treat a patient who is fully invested in pretending to be someone other than himself; Noah doubts his abilities as a doctor; Dr. Marcel and Dr. Choi face a tough ethical decision; Dr. Halstead puts his faith in an addict.

A convicted murderer's escape hits close to home when several team members end up in danger; Dr. Charles and Dr. Halstead clash over patient treatment plans; Dr. Choi and April discover the truth about a patient's scam; Maggie receives good news.

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, 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.

The team deals with the aftermath of a school bus crash; Dr. Charles worries Dr. Halstead is putting his medical license in jeopardy; Maggie helps a friend in need.

Two brothers in critical condition are rushed into the hospital by their parents, leaving Dr. Choi, April and Dr. Charles to piece together what actually transpired; Dr. Manning becomes suspicious of a new mother entering the E.D.

Dr. Manning and Dr. Marcel disagree over an abusive husband; Dr. Halstead struggles with ethics and his decision to work at the safe injection site; Dr. Charles and Elsa reveal a misdiagnosis that may change a family's life.

Dr. Charles and Dr. Manning treat a patient who is fully invested in pretending to be someone other than himself; Noah doubts his abilities as a doctor; Dr. Marcel and Dr. Choi face a tough ethical decision; Dr. Halstead puts his faith in an addict.

A convicted murderer's escape hits close to home when several team members end up in danger; Dr. Charles and Dr. Halstead clash over patient treatment plans; Dr. Choi and April discover the truth about a patient's scam; Maggie receives good news.

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.

A woman becomes the target of her overly flirtatious neighbor after her husband dies; the woman's brother moves in to protect her and is put on a collision course with the the neighbor that will be resolved with bloodshed.

Oliver Shaw's teenage daughter, Izzy, witnesses the brutal stabbing of a homeless squatter; when Izzy goes missing, officers rush to track her down.

The team discovers that the federal agent they are working with during the transport of a serial killer is secretly sabotaging their mission.

A woman becomes the target of her overly flirtatious neighbor after her husband dies; the woman's brother moves in to protect her and is put on a collision course with the the neighbor that will be resolved with bloodshed.

Oliver Shaw's teenage daughter, Izzy, witnesses the brutal stabbing of a homeless squatter; when Izzy goes missing, officers rush to track her down.

The team discovers that the federal agent they are working with during the transport of a serial killer is secretly sabotaging their mission.

A woman becomes the target of her overly flirtatious neighbor after her husband dies; the woman's brother moves in to protect her and is put on a collision course with the the neighbor that will be resolved with bloodshed.

Oliver Shaw's teenage daughter, Izzy, witnesses the brutal stabbing of a homeless squatter; when Izzy goes missing, officers rush to track her down.

The team discovers that the federal agent they are working with during the transport of a serial killer is secretly sabotaging their mission.

After a series of brutal home-invasion robberies, Upton immerses herself in the case and finds herself caught between Voight and Halstead.

Voight and the team pursue a ruthless crime ring whose business has hit close to home; as they dig deeper, the extent of the danger becomes more apparent; Deputy Superintendent Samantha Miller second-guesses her decisions.

Voight and the team muster all their expertise to bring down a deadly crime ring; Burgess finds herself in a dangerous situation.

Burgess fights for her life as the team scrambles to find her kidnapper; Dep. Supt. Sam Miller is desperate to find her son's killer; Voight and Upton deal with the aftermath of their decision; Ruzek struggles with the pressure of the situation.

When a P.D. informant is murdered, the team digs in to track down the perpetrator only to learn a shocking truth; Voight and Ruzek strategize to help Burgess.

Halstead's past resurfaces when a former Army colleague is implicated in a deadly blast; as the FBI launches an investigation into Roy's disappearance, Upton feels the pressure of the secret she and Voight are sharing.

When Upton and Ruzek answer an emergency call to an abandoned house, their investigation leads them down a dark path.

After a series of brutal home-invasion robberies, Upton immerses herself in the case and finds herself caught between Voight and Halstead.

Voight and the team pursue a ruthless crime ring whose business has hit close to home; as they dig deeper, the extent of the danger becomes more apparent; Deputy Superintendent Samantha Miller second-guesses her decisions.

Voight and the team muster all their expertise to bring down a deadly crime ring; Burgess finds herself in a dangerous situation.

Burgess fights for her life as the team scrambles to find her kidnapper; Dep. Supt. Sam Miller is desperate to find her son's killer; Voight and Upton deal with the aftermath of their decision; Ruzek struggles with the pressure of the situation.

When a P.D. informant is murdered, the team digs in to track down the perpetrator only to learn a shocking truth; Voight and Ruzek strategize to help Burgess.

Halstead's past resurfaces when a former Army colleague is implicated in a deadly blast; as the FBI launches an investigation into Roy's disappearance, Upton feels the pressure of the secret she and Voight are sharing.

When Upton and Ruzek answer an emergency call to an abandoned house, their investigation leads them down a dark path.

After a series of brutal home-invasion robberies, Upton immerses herself in the case and finds herself caught between Voight and Halstead.

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

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

A small town encounters satanic rituals and a savage killer.

As the team works to solve a deadly shooting in Burnside, Atwater realizes he has a very personal connection to the case.

Ruzek reunites with an old colleague to take down a crime ring, but when things don't add up, Voight and Burgess do some investigating of their own.

As the team works to bring down a drug ring, Voight builds trust with a new informant; however, it soon becomes clear she has a plan of her own.

As the team investigates the stabbing of a father with two young daughters, they begin to suspect there is more to the story than meets the eye; the FBI investigation into Roy Walton's death intensifies while Voight, Upton and Halstead feel the heat.

With the FBI closing in on the Roy Walton investigation, Voight and Halstead strategize a way out; after a city bus driver is shot by a passenger, the team investigates a possible abduction.

The team searches for a missing child in what turns out to be a very complicated case; Burgess and Ruzek are in for a shock when someone from Makayla's past comes forward.

Voight employs his new informant to help solve a tricky drug trafficking case; Atwater, who once again struggles to reconcile his personal and professional life, reaches a decision.

As the team works to solve a deadly shooting in Burnside, Atwater realizes he has a very personal connection to the case.

Ruzek reunites with an old colleague to take down a crime ring, but when things don't add up, Voight and Burgess do some investigating of their own.

As the team works to bring down a drug ring, Voight builds trust with a new informant; however, it soon becomes clear she has a plan of her own.

As the team investigates the stabbing of a father with two young daughters, they begin to suspect there is more to the story than meets the eye; the FBI investigation into Roy Walton's death intensifies while Voight, Upton and Halstead feel the heat.

With the FBI closing in on the Roy Walton investigation, Voight and Halstead strategize a way out; after a city bus driver is shot by a passenger, the team investigates a possible abduction.

The team searches for a missing child in what turns out to be a very complicated case; Burgess and Ruzek are in for a shock when someone from Makayla's past comes forward.

Voight employs his new informant to help solve a tricky drug trafficking case; Atwater, who once again struggles to reconcile his personal and professional life, reaches a decision.

As the team works to solve a deadly shooting in Burnside, Atwater realizes he has a very personal connection to the case.

Ruzek reunites with an old colleague to take down a crime ring, but when things don't add up, Voight and Burgess do some investigating of their own.

As the team works to bring down a drug ring, Voight builds trust with a new informant; however, it soon becomes clear she has a plan of her own.

As the team investigates the stabbing of a father with two young daughters, they begin to suspect there is more to the story than meets the eye; the FBI investigation into Roy Walton's death intensifies while Voight, Upton and Halstead feel the heat.

With the FBI closing in on the Roy Walton investigation, Voight and Halstead strategize a way out; after a city bus driver is shot by a passenger, the team investigates a possible abduction.

The team searches for a missing child in what turns out to be a very complicated case; Burgess and Ruzek are in for a shock when someone from Makayla's past comes forward.

Voight employs his new informant to help solve a tricky drug trafficking case; Atwater, who once again struggles to reconcile his personal and professional life, reaches a decision.

Members of Firehouse 51 are unhappy when Patterson fills in for Boden while he tries to clear his name; Severide may have found Serena; Chili and Jimmy attract more attention than they expected.

A member of Firehouse 51 is treated for life-threatening injuries; Cruz searches for Freddie; Mouch has a surprise for Trudy; Chili's behavior worries Brett and Jimmy.

The city prepares for a tornado; Brett is forced to go to Boden about Chili's erratic behavior; Otis asks Dawson for help with his women trouble; the Department of Homeland Security asks Severide for assistance with a suspicious home.

Herrmann is tormented by a difficult decision; Casey is thrown into the spotlight at a fundraiser; Dawson and Brett are faced with the repercussions of their actions; Severide helps with a case regarding homemade explosives; Otis is surprised.

News of a mass shooting brings the members of Firehouse 51 into harrowing territory; Casey investigates the missing money from the fundraiser; Jimmy participates in a boxing match; Chili's erratic behavior continues to be a major issue for Brett.

Chili does not respond well when Severide tries to talk to her about her erratic behavior; members of the firehouse think Casey should run for the position of alderman; Jimmy and Antonio face off in a boxing match.

Firehouse 51 responds to an unusual call from another firehouse; the addition of a new firefighter (Miranda Rae Mayo) has repercussions; Casey realizes that certain voters have personal agendas for wanting him elected.

A propaganda attack causes Casey to reconsider his run for alderman; when a man is trapped inside a burning car, it seems the fire may have been set intentionally; Trudy's nerdy brother plans Mouch's bachelor party; a kidnapping investigation.

As the courageous firefighters, rescue squad and paramedics of Chicago Firehouse 51 head first into danger, bravely fighting to save the people of their city from peril, they also forge deep, unbreakable bonds with each other.

A member of Firehouse 51 is treated for life-threatening injuries; Cruz searches for Freddie; Mouch has a surprise for Trudy; Chili's behavior worries Brett and Jimmy.

The city prepares for a tornado; Brett is forced to go to Boden about Chili's erratic behavior; Otis asks Dawson for help with his women trouble; the Department of Homeland Security asks Severide for assistance with a suspicious home.

Herrmann is tormented by a difficult decision; Casey is thrown into the spotlight at a fundraiser; Dawson and Brett are faced with the repercussions of their actions; Severide helps with a case regarding homemade explosives; Otis is surprised.

News of a mass shooting brings the members of Firehouse 51 into harrowing territory; Casey investigates the missing money from the fundraiser; Jimmy participates in a boxing match; Chili's erratic behavior continues to be a major issue for Brett.

Chili does not respond well when Severide tries to talk to her about her erratic behavior; members of the firehouse think Casey should run for the position of alderman; Jimmy and Antonio face off in a boxing match.