Officer Nolan mildly injures himself while chasing down a shoplifter and the local district attorney wants to charge the suspect with assault, despite Nolan's wishes; Lucy goes undercover; Lopez's wedding venue is seized by the FBI.

Officer Nolan and the entire team race against the clock to locate Lopez after she is kidnapped on her wedding day, not only to save her life but her unborn child's.

Officer Nolan and Officer Chen's run-in with an infamous thief tips them off to a potentially big heist surrounding the Getty's big gala event; Nolan works up the courage to ask Bailey out on a date.

Officers Nolan and Chen report to a structure fire and suspect that there is more to the situation than meets the eye; after a sniper shooting, the team searches for the shooter and discovers that the perpetrator has a connection to one of its own.

Officer Nolan and Officer Chen search for a missing person who may have international ties, putting everyone's lives in danger; Harper continues the search for a serial arsonist; Wesley must overcome an impossible task.

When a new designer drug hits the streets, Officer Nolan and the team have a Halloween they won't soon forget; Lucy questions whether her apartment building might be haunted.

Officers Nolan and Bradford hope they can de-escalate a drug war before any innocent lives are lost; Officer Harper hopes she can get Officer Chen ready to go undercover.

When Leslie Neulander's death is declared accidental, forensic investigators sound the alarm that it was no accident.

A suitcase filled with unidentified human remains unlocks a missing person's case that has gone unsolved for years; the forensic analysis of a nearly-destroyed cellphone found in the suitcase reveals a mysterious selfie.

When Lanell Barsock is found murdered, it seems obvious to all that her boyfriend did it; when the forensic evidence comes in, investigators are astonished to learn they've arrested the wrong person.

Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.

When the wife of an alderman is beaten to death, Voight finds himself under pressure from Brennan to close the case; Upton shares a dark episode from her past to elicit a confession.

Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.

The stakes become personal for Atwater during Intelligence's investigation of a drug dealer suspected of homicide.

As his dependency on prescription painkillers grows, Antonio crosses a line, endangering someone close to him and ultimately putting the entire team at risk.

Intelligence investigates a carjacking turned homicide; Ruzek makes a decision that puts his life and career at risk to protect those close to him.

Intelligence crosses with a mayoral candidate while investigating the fatal shooting of a well-known defense attorney; Antonio returns to work but questions his own judgment when an operation goes sideways.

Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.

When the wife of an alderman is beaten to death, Voight finds himself under pressure from Brennan to close the case; Upton shares a dark episode from her past to elicit a confession.

Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.

The stakes become personal for Atwater during Intelligence's investigation of a drug dealer suspected of homicide.

As his dependency on prescription painkillers grows, Antonio crosses a line, endangering someone close to him and ultimately putting the entire team at risk.

When 21-year-old engineering student Lynda Shaw is abducted and killed, investigators in Ontario, Canada, look at dozens of suspects, including one of the country's most notorious serial killers; the case goes cold.

After spring break, 19-year-old Shannon Melendi vanishes in Atlanta; when their suspect's home burns, Georgia police fear a serial killer.

Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.

When the wife of an alderman is beaten to death, Voight finds himself under pressure from Brennan to close the case; Upton shares a dark episode from her past to elicit a confession.

Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.

The stakes become personal for Atwater during Intelligence's investigation of a drug dealer suspected of homicide.

As his dependency on prescription painkillers grows, Antonio crosses a line, endangering someone close to him and ultimately putting the entire team at risk.

Intelligence investigates a carjacking turned homicide; Ruzek makes a decision that puts his life and career at risk to protect those close to him.

Intelligence crosses with a mayoral candidate while investigating the fatal shooting of a well-known defense attorney; Antonio returns to work but questions his own judgment when an operation goes sideways.

Homicide investigators are convinced an apparent murder-suicide was staged but the experienced CSI on the scene disagrees; only the instincts of the cops, coupled with an outside forensic expert's opinion, convince authorities who the real killer is.

Police struggle to identify the body of a woman found floating in the Indian River; with only a piece of nautical rope, a strip of duct tape and some plastic bags to go on, they use every forensic tool they have to catch her killer.

From tropical Hawaii to the frigid waters of Lake Ontario, experts reveal the clues nature leaves behind on a human corpse.

A series of similar car accidents raises suspicion that someone may be targeting innocent people; Severide tries to make Anna feel welcome in her new Chicago surroundings; a persistent constituent asks for Alderman Casey's help in resolving an issue.

Casey discovers a new crack house on the block that's harboring a female junkie; a new trainee gets Dawson and Brett into trouble; Severide gets an unexpected visit from his father.

Casey reunites with a former colleague; Dawson and Brett serve their time in retraining; Severide tries to fix what's going on with Anna.

Casey takes extreme measures to help his friend Kannell; Severide helps an old widow come to terms with letting go; Otis and Cruz find a new roommate.

Mouch offers to help when an off-duty incident puts Cruz in a bad spot; Casey takes on a powerful politician; Lt. Severide makes life difficult for a new team member; Dawson gets an unexpected visit from her father.

A warehouse blaze puts the fire and rescue squad at risk; Dawson's father overstays his welcome at Dawson and Casey's home; Casey fights for his first responders bill; Mouch makes a serious decision; Herrmann tries to make a young boy smile.

Chief Boden makes a risky last-minute decision to save his men; Dawson continues to deal with her father; Brett's childhood friend visits and catches the attention of someone within the firehouse; a fire at a high school hits close to home for Boden.

A series of similar car accidents raises suspicion that someone may be targeting innocent people; Severide tries to make Anna feel welcome in her new Chicago surroundings; a persistent constituent asks for Alderman Casey's help in resolving an issue.

Casey discovers a new crack house on the block that's harboring a female junkie; a new trainee gets Dawson and Brett into trouble; Severide gets an unexpected visit from his father.

Casey reunites with a former colleague; Dawson and Brett serve their time in retraining; Severide tries to fix what's going on with Anna.

Casey takes extreme measures to help his friend Kannell; Severide helps an old widow come to terms with letting go; Otis and Cruz find a new roommate.

Mouch offers to help when an off-duty incident puts Cruz in a bad spot; Casey takes on a powerful politician; Lt. Severide makes life difficult for a new team member; Dawson gets an unexpected visit from her father.

A warehouse blaze puts the fire and rescue squad at risk; Dawson's father overstays his welcome at Dawson and Casey's home; Casey fights for his first responders bill; Mouch makes a serious decision; Herrmann tries to make a young boy smile.

Chief Boden makes a risky last-minute decision to save his men; Dawson continues to deal with her father; Brett's childhood friend visits and catches the attention of someone within the firehouse; a fire at a high school hits close to home for Boden.

A series of similar car accidents raises suspicion that someone may be targeting innocent people; Severide tries to make Anna feel welcome in her new Chicago surroundings; a persistent constituent asks for Alderman Casey's help in resolving an issue.

Casey discovers a new crack house on the block that's harboring a female junkie; a new trainee gets Dawson and Brett into trouble; Severide gets an unexpected visit from his father.

Casey reunites with a former colleague; Dawson and Brett serve their time in retraining; Severide tries to fix what's going on with Anna.

Casey takes extreme measures to help his friend Kannell; Severide helps an old widow come to terms with letting go; Otis and Cruz find a new roommate.

Mouch offers to help when an off-duty incident puts Cruz in a bad spot; Casey takes on a powerful politician; Lt. Severide makes life difficult for a new team member; Dawson gets an unexpected visit from her father.

Homicide investigators are convinced an apparent murder-suicide was staged but the experienced CSI on the scene disagrees; only the instincts of the cops, coupled with an outside forensic expert's opinion, convince authorities who the real killer is.

Police struggle to identify the body of a woman found floating in the Indian River; with only a piece of nautical rope, a strip of duct tape and some plastic bags to go on, they use every forensic tool they have to catch her killer.

An industrious woman and an ambitious man buy adjoining houses, intending to restore the derelict properties to their former glory, but when one of the renovations falls behind, it leads to conflict and murder.

Sophisticated crime fighters map the psychological and physical terrain of multiple murderers.

Hijackers commandeer a passenger jet to bargain for a prisoners release.

An industrious woman and an ambitious man buy adjoining houses, intending to restore the derelict properties to their former glory, but when one of the renovations falls behind, it leads to conflict and murder.

Sophisticated crime fighters map the psychological and physical terrain of multiple murderers.

Hijackers commandeer a passenger jet to bargain for a prisoners release.

An industrious woman and an ambitious man buy adjoining houses, intending to restore the derelict properties to their former glory, but when one of the renovations falls behind, it leads to conflict and murder.

Hijackers commandeer a passenger jet to bargain for a prisoners release.

Sophisticated crime fighters map the psychological and physical terrain of multiple murderers.

Boden takes a big step in the pursuit of a major career decision; Kidd becomes increasingly distrustful of Renee's motives with Severide; Herrmann has trouble bouncing back after a tragedy.

Boden's chances for a promotion are met with potential complications; Dawson and Casey don't see eye to eye on an important decision; Kidd finds herself struggling to find time with Severide; Brett and Dawson respond to a tough call.

Reeling from Dawson's continued absence, Casey makes a rash move during a rescue, while Brett struggles with a series of replacement partners; meanwhile, Boden faces scrutiny from Commissioner Grissom, who sends his deputy to monitor Firehouse 51.

Firehouse 51 bands together to fight a raging fire on the 20th floor of the residential high-rise where Jay and Will Halstead's father lives and has gone missing; in the midst of the chaos, Brett learns unsettling information about her new partner.

Severide investigates a victim's motives after rescuing him and his child from a car accident; Boden clashes with Gorsch over appointing a new lieutenant; Mouch reaches out to a fellow firefighter; Cruz discovers he has a new admirer.

Herrmann faces hazing in his new role as lieutenant; Foster suspects a young gymnast's injury is more than meets the eye; Severide is jealous of Kidd's best friend; Casey and Boden turn to P.D. after treating two victims who have similar injuries.

Dante seeks out new experiences to fuel his songwriting, embracing danger as he exposes himself to feelings and risks; meanwhile, Eamonn threatens to drag Bardon back into his dark world.

Boden takes a big step in the pursuit of a major career decision; Kidd becomes increasingly distrustful of Renee's motives with Severide; Herrmann has trouble bouncing back after a tragedy.

Boden's chances for a promotion are met with potential complications; Dawson and Casey don't see eye to eye on an important decision; Kidd finds herself struggling to find time with Severide; Brett and Dawson respond to a tough call.

Reeling from Dawson's continued absence, Casey makes a rash move during a rescue, while Brett struggles with a series of replacement partners; meanwhile, Boden faces scrutiny from Commissioner Grissom, who sends his deputy to monitor Firehouse 51.

Dante seeks out new experiences to fuel his songwriting, embracing danger as he exposes himself to feelings and risks; meanwhile, Eamonn threatens to drag Bardon back into his dark world.

Severide investigates a victim's motives after rescuing him and his child from a car accident; Boden clashes with Gorsch over appointing a new lieutenant; Mouch reaches out to a fellow firefighter; Cruz discovers he has a new admirer.

Herrmann faces hazing in his new role as lieutenant; Foster suspects a young gymnast's injury is more than meets the eye; Severide is jealous of Kidd's best friend; Casey and Boden turn to P.D. after treating two victims who have similar injuries.

Dante seeks out new experiences to fuel his songwriting, embracing danger as he exposes himself to feelings and risks; meanwhile, Eamonn threatens to drag Bardon back into his dark world.

A single mother of four children finds the perfect house in New Orleans, then a robbery at a neighbor's home leads to a misunderstanding, then to paranoia, conflict and bloodshed.

Criminals are betrayed by the clues their own bodies leave behind.

Team One must figure out how to get a Chinatown gang to release a local shop owner.

A single mother of four children finds the perfect house in New Orleans, then a robbery at a neighbor's home leads to a misunderstanding, then to paranoia, conflict and bloodshed.

Criminals are betrayed by the clues their own bodies leave behind.

Team One must figure out how to get a Chinatown gang to release a local shop owner.

A single mother of four children finds the perfect house in New Orleans, then a robbery at a neighbor's home leads to a misunderstanding, then to paranoia, conflict and bloodshed.

Team One must figure out how to get a Chinatown gang to release a local shop owner.

Criminals are betrayed by the clues their own bodies leave behind.

After a baby is abducted, Goodwin enlists the help of Dr. Charles and Dr. Reese to find the suspect; due to the lockdown, Dr. Rhodes must figure out a way to get into the operating room to help perform open-heart surgery.

Dr. Charles and Dr. Reese search for answers when a mother claims her daughter is possessed; Dr. Rhodes and Dr. Bekker must find a way to save a pair of conjoined twins; Dr. Halstead struggles to get Dr. Manning's attention.

After taking the lead on a surgery, Dr. Bekker feels the heat after something goes wrong; Dr. Manning and Dr. Charles are faced with a tough decision concerning a 9-year-old girl; April and Dr. Reese rush to find the son of a dying patient.

After a 10-year-old boy is admitted to the hospital, Dr. Manning and Dr. Halstead disagree on how to handle the boy's parents; Dr. Rhodes rushes to fix a heart that will be given to Dr. Reese's estranged father.

After a shooting occurs during a block party, the staff is overrun with victims; Dr. Choi devises a new mass casualty plan; Dr. Manning struggles to stay focused when she realizes her son and nanny might have been at the scene.

Dr. Manning rushes to save a boy who has a life-threatening case of the flu; April suspects Dr. Choi's sister of stealing opioid painkillers; Dr. Rhodes and Dr. Bekker disagree over the best treatment for a cardiac patient who is 21 weeks pregnant.

As a shadowy enemy moves to silence them for good, Jim struggles to reclaim his standing with Saxton, and Nina takes drastic measures to infiltrate the organization; Jim and Genesis disrupt a mob wedding.

After a baby is abducted, Goodwin enlists the help of Dr. Charles and Dr. Reese to find the suspect; due to the lockdown, Dr. Rhodes must figure out a way to get into the operating room to help perform open-heart surgery.

Dr. Charles and Dr. Reese search for answers when a mother claims her daughter is possessed; Dr. Rhodes and Dr. Bekker must find a way to save a pair of conjoined twins; Dr. Halstead struggles to get Dr. Manning's attention.

After taking the lead on a surgery, Dr. Bekker feels the heat after something goes wrong; Dr. Manning and Dr. Charles are faced with a tough decision concerning a 9-year-old girl; April and Dr. Reese rush to find the son of a dying patient.

After a 10-year-old boy is admitted to the hospital, Dr. Manning and Dr. Halstead disagree on how to handle the boy's parents; Dr. Rhodes rushes to fix a heart that will be given to Dr. Reese's estranged father.

After a shooting occurs during a block party, the staff is overrun with victims; Dr. Choi devises a new mass casualty plan; Dr. Manning struggles to stay focused when she realizes her son and nanny might have been at the scene.

Dr. Manning rushes to save a boy who has a life-threatening case of the flu; April suspects Dr. Choi's sister of stealing opioid painkillers; Dr. Rhodes and Dr. Bekker disagree over the best treatment for a cardiac patient who is 21 weeks pregnant.

As a shadowy enemy moves to silence them for good, Jim struggles to reclaim his standing with Saxton, and Nina takes drastic measures to infiltrate the organization; Jim and Genesis disrupt a mob wedding.

After a baby is abducted, Goodwin enlists the help of Dr. Charles and Dr. Reese to find the suspect; due to the lockdown, Dr. Rhodes must figure out a way to get into the operating room to help perform open-heart surgery.

A decorated police officer relies on his neighbors to help him take care of his beloved daughter, then she accuses one of them of molesting her, and all hell breaks loose.

Using technology to solve crime.

A violent patient takes a guard hostage and injures a fellow patient.

A decorated police officer relies on his neighbors to help him take care of his beloved daughter, then she accuses one of them of molesting her, and all hell breaks loose.

Using technology to solve crime.

A violent patient takes a guard hostage and injures a fellow patient.

A decorated police officer relies on his neighbors to help him take care of his beloved daughter, then she accuses one of them of molesting her, and all hell breaks loose.

A violent patient takes a guard hostage and injures a fellow patient.

Using technology to solve crime.

Athena, Bobby and the 118 must rescue a family whose pick-up truck has been rigged with a pipe bomb that will detonate if the vehicle slows down and goes under 55 mph; Eddie has a rough transition into his new job; Buck makes a relationship decision.

Chimney is determined to find a missing Maddie amongst the chaos of St. Patrick's Day.

Athena investigates a robbery at a gas station; Bobby and the 126 race to rescue a novice diver who panics while in a shark cage; Eddie reaches his breaking point; Maddie shares some news with Buck, who realizes he has to come clean with Taylor.

The members of the 118 race into action when a woman falls over her balcony; Athena investigates when a bike rider is impaled on a stop sign; Eddie begins his therapy for his PTSD and survivor's guilt; Maddie fears the worst when Jee-Yun falls ill.

A social media influencer has an accident in a sauna; an emergency at a reality show wedding; a tragedy when a mother and her daughter go hiking; Maddie worries she has missed too many firsts with Jee-Yun.

The 118 races to the rescue when the call center goes up in flames; Bobby risks his life to save a trapped May and Claudette; Buck and Eddie must help an injured electrician; Chimney and his brother team up as firefighters for the first time.

After a mysterious death, Hen and Chimney put their lives in danger when they suspect that someone is playing God to make themselves look like a hero; Eddie visits Texas, where he attempts to reconcile with his father.

Athena, Bobby and the 118 must rescue a family whose pick-up truck has been rigged with a pipe bomb that will detonate if the vehicle slows down and goes under 55 mph; Eddie has a rough transition into his new job; Buck makes a relationship decision.

Chimney is determined to find a missing Maddie amongst the chaos of St. Patrick's Day.

Athena investigates a robbery at a gas station; Bobby and the 126 race to rescue a novice diver who panics while in a shark cage; Eddie reaches his breaking point; Maddie shares some news with Buck, who realizes he has to come clean with Taylor.

The members of the 118 race into action when a woman falls over her balcony; Athena investigates when a bike rider is impaled on a stop sign; Eddie begins his therapy for his PTSD and survivor's guilt; Maddie fears the worst when Jee-Yun falls ill.

A social media influencer has an accident in a sauna; an emergency at a reality show wedding; a tragedy when a mother and her daughter go hiking; Maddie worries she has missed too many firsts with Jee-Yun.

The 118 races to the rescue when the call center goes up in flames; Bobby risks his life to save a trapped May and Claudette; Buck and Eddie must help an injured electrician; Chimney and his brother team up as firefighters for the first time.

After a mysterious death, Hen and Chimney put their lives in danger when they suspect that someone is playing God to make themselves look like a hero; Eddie visits Texas, where he attempts to reconcile with his father.

Athena, Bobby and the 118 must rescue a family whose pick-up truck has been rigged with a pipe bomb that will detonate if the vehicle slows down and goes under 55 mph; Eddie has a rough transition into his new job; Buck makes a relationship decision.

In New Brighton, Minn., two neighbors get along great until one of them catches Lyme Disease from the deer the other feeds on his property, then the ensuing blame game leads to rising hostility and ends in gunfire.

Murder weapons often hold several critical forensic clues about the crime.

A bold heist at a stadium lures Team One into an ex-cop's violent plan to defeat the man he blames for ruining his life.

In New Brighton, Minn., two neighbors get along great until one of them catches Lyme Disease from the deer the other feeds on his property, then the ensuing blame game leads to rising hostility and ends in gunfire.

Murder weapons often hold several critical forensic clues about the crime.

A bold heist at a stadium lures Team One into an ex-cop's violent plan to defeat the man he blames for ruining his life.

In New Brighton, Minn., two neighbors get along great until one of them catches Lyme Disease from the deer the other feeds on his property, then the ensuing blame game leads to rising hostility and ends in gunfire.

A bold heist at a stadium lures Team One into an ex-cop's violent plan to defeat the man he blames for ruining his life.

Murder weapons often hold several critical forensic clues about the crime.

Dr. Rhodes second guesses removing himself from the team working to separate conjoined twins; Dr. Choi and April make a startling discovery about his sister; Dr. Charles uncovers troubling information concerning Dr. Reese's father.

Bekker takes drastic action to keep Rhodes from leaving Med for good; Halstead questions Manning's feelings about their upcoming wedding; Ethan receives shocking news about his sister, Emily; Charles mourns a loss.

Chicago Med, Fire and P.D. cross paths when a high-rise fire floods Med with victims, including Will and Jay Halstead's father; Rhodes must save the life and career of Stella Kidd; Manning treats a burn victim; Charles assesses a distraught Otis.

Halstead arranges a great deal on a wedding venue; Manning and Elsa treat an ill pregnant woman convinced that God will save her; the staff is conflicted about the law-breaking father of a 5-year-old patient; Rhodes opens his hybrid OR early.

Halstead is backed into a corner after unknowingly making a deal with a gangster; Manning fights for her dying patient, who is not a U.S. citizen; Rhodes and Bekker clash in the OR; Choi is shocked when he meets Emily's new boyfriend.

In the quiet farming town of Leamington, Ontario, local cops stumble onto an unthinkable secret.

In the quiet farming town of Leamington, Ontario, local cops stumble onto an unthinkable secret.

The shocking rise of a Mennonite clan who turned faith, family, and farming roots into one of North America's most elusive drug networks.

Heidi Klum returns to host twenty-two designers as they battle to win fashion's biggest prize. A jaw-dropping twist raises the stakes as the designers fight to secure a spot in the competition by presenting the judges with a signature look.

Dr. Rhodes second guesses removing himself from the team working to separate conjoined twins; Dr. Choi and April make a startling discovery about his sister; Dr. Charles uncovers troubling information concerning Dr. Reese's father.

Chicago Med, Fire and P.D. cross paths when a high-rise fire floods Med with victims, including Will and Jay Halstead's father; Rhodes must save the life and career of Stella Kidd; Manning treats a burn victim; Charles assesses a distraught Otis.

Halstead arranges a great deal on a wedding venue; Manning and Elsa treat an ill pregnant woman convinced that God will save her; the staff is conflicted about the law-breaking father of a 5-year-old patient; Rhodes opens his hybrid OR early.

Halstead is backed into a corner after unknowingly making a deal with a gangster; Manning fights for her dying patient, who is not a U.S. citizen; Rhodes and Bekker clash in the OR; Choi is shocked when he meets Emily's new boyfriend.

In the quiet farming town of Leamington, Ontario, local cops stumble onto an unthinkable secret.

In the quiet farming town of Leamington, Ontario, local cops stumble onto an unthinkable secret.

The shocking rise of a Mennonite clan who turned faith, family, and farming roots into one of North America's most elusive drug networks.

Heidi Klum returns to host twenty-two designers as they battle to win fashion's biggest prize. A jaw-dropping twist raises the stakes as the designers fight to secure a spot in the competition by presenting the judges with a signature look.

In an apartment building, two young couples walk around on eggshells because of a neighbor who can't stand one couple's music and the other's dog, then all hell breaks loose, and a violent rampage ensues.

Fire, water, earth - killers call on all the elements in their attempt to cover up their crimes.

Spike finds himself held at gunpoint; the team races to a shots-fired call.

In an apartment building, two young couples walk around on eggshells because of a neighbor who can't stand one couple's music and the other's dog, then all hell breaks loose, and a violent rampage ensues.

Fire, water, earth - killers call on all the elements in their attempt to cover up their crimes.

Spike finds himself held at gunpoint; the team races to a shots-fired call.

In an apartment building, two young couples walk around on eggshells because of a neighbor who can't stand one couple's music and the other's dog, then all hell breaks loose, and a violent rampage ensues.

Spike finds himself held at gunpoint; the team races to a shots-fired call.

Fire, water, earth - killers call on all the elements in their attempt to cover up their crimes.

Officer Nolan and team are on a hunt to retrieve a buried stash of gold before any treasure seekers get hurt; Bradford is tasked with encouraging the oldest cop at the station to retire and invites him to ride with him.

Officer Nolan and Bailey discover there's more to Fred's death than meets the eye; Officer Chen and Officer Bradford demand a treasure hunt rematch and enlist Officer Grey to help set the terms to a new bet.

The team goes on a city-wide hunt for an individual who is threatening to cause a mass casualty event; Tim's sister shows up unannounced with some surprising news; Lopez continues her inner struggle over Wesley's deal with Elijah.

Desperate to break free from his connection to Elijah, Wesley tries to plant a listening device in his office to incriminate him; Officer Bradford and his sister, Genny, learn an unsettling truth about their father.

Now that John Nolan knows about Bailey's past, he must decide if they still have a future; when a plane crashes in the middle of the city, the team races to find out why.

The team must rely on a criminal for his expertise to help take down an even bigger threat; Officers Chen and Bradford investigate the murder of an unhoused teenager who used to be friends with Tamara.

The team responds to the report of a severed hand washing up on the beach and is on the hunt to find its owner; Tim attempts to prove he isn't a control freak to Lucy and invites her on a double date with him and Ashley.

Officer Nolan and team are on a hunt to retrieve a buried stash of gold before any treasure seekers get hurt; Bradford is tasked with encouraging the oldest cop at the station to retire and invites him to ride with him.

Officer Nolan and Bailey discover there's more to Fred's death than meets the eye; Officer Chen and Officer Bradford demand a treasure hunt rematch and enlist Officer Grey to help set the terms to a new bet.

The team goes on a city-wide hunt for an individual who is threatening to cause a mass casualty event; Tim's sister shows up unannounced with some surprising news; Lopez continues her inner struggle over Wesley's deal with Elijah.

Desperate to break free from his connection to Elijah, Wesley tries to plant a listening device in his office to incriminate him; Officer Bradford and his sister, Genny, learn an unsettling truth about their father.

Now that John Nolan knows about Bailey's past, he must decide if they still have a future; when a plane crashes in the middle of the city, the team races to find out why.

The team must rely on a criminal for his expertise to help take down an even bigger threat; Officers Chen and Bradford investigate the murder of an unhoused teenager who used to be friends with Tamara.

The team responds to the report of a severed hand washing up on the beach and is on the hunt to find its owner; Tim attempts to prove he isn't a control freak to Lucy and invites her on a double date with him and Ashley.

Officer Nolan and team are on a hunt to retrieve a buried stash of gold before any treasure seekers get hurt; Bradford is tasked with encouraging the oldest cop at the station to retire and invites him to ride with him.

In fall 1991, Toronto was paralyzed by the story of a missing six-year-old girl found raped and murdered in the boiler room of her apartment building; with four suspects, CSIs turned to the brand-new science of DNA to catch the killer.

In 1988, motorists discover human body parts dumped along the highway.

In 1990, Gainesville, Fla., becomes the site of a number of coed murders.

With Voight sidelined, Antonio and Ruzek clash as Intelligence races to solve a high-stakes case involving a series of overdose deaths caused by bad heroin.

Intelligence joins forces with Firehouse 51 after a devastating high-rise fire is ruled arson, and Halstead, who has a tragic connection to the fire, struggles to stay objective as he gets deeper into the investigation.

Intelligence's investigation into a string of robberies targeting vulnerable immigrants escalates when a teenage girl connected to a critic of the CPD is kidnapped by the robbers.

Burgess finds herself in a difficult situation when she responds to a call while a civilian is in her car for a ride-along that was requested by Brennan.

Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.

When the wife of an alderman is beaten to death, Voight finds himself under pressure from Brennan to close the case; Upton shares a dark episode from her past to elicit a confession.

Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.

With Voight sidelined, Antonio and Ruzek clash as Intelligence races to solve a high-stakes case involving a series of overdose deaths caused by bad heroin.

Intelligence joins forces with Firehouse 51 after a devastating high-rise fire is ruled arson, and Halstead, who has a tragic connection to the fire, struggles to stay objective as he gets deeper into the investigation.

Intelligence's investigation into a string of robberies targeting vulnerable immigrants escalates when a teenage girl connected to a critic of the CPD is kidnapped by the robbers.

Burgess finds herself in a difficult situation when she responds to a call while a civilian is in her car for a ride-along that was requested by Brennan.

Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.

The 15-year-old Danielle Locklear heads to a neighbor's home after school and never comes home; a photo taken the day before she disappeared leads North Carolina investigators to four key suspects.

Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.

With Voight sidelined, Antonio and Ruzek clash as Intelligence races to solve a high-stakes case involving a series of overdose deaths caused by bad heroin.

Intelligence joins forces with Firehouse 51 after a devastating high-rise fire is ruled arson, and Halstead, who has a tragic connection to the fire, struggles to stay objective as he gets deeper into the investigation.

Intelligence's investigation into a string of robberies targeting vulnerable immigrants escalates when a teenage girl connected to a critic of the CPD is kidnapped by the robbers.

Burgess finds herself in a difficult situation when she responds to a call while a civilian is in her car for a ride-along that was requested by Brennan.

Intelligence's investigation of a nightclub owner suspected of cocaine distribution is complicated when Ruzek recognizes someone close to him while working undercover.

When the wife of an alderman is beaten to death, Voight finds himself under pressure from Brennan to close the case; Upton shares a dark episode from her past to elicit a confession.

Voight urges Halstead to remain impartial and follow the facts when the leader of a local mosque becomes the suspect in the bombing of an Army recruitment center.

The disappearance of millionaire Frank Black.

CSIs determine that a girl's ex-husband had his parents assassinate her.

Explosive experts sifting through bomb evidence discover a more insidious plan.

Casey helps a reporter uncover the truth behind a trailer park fire; Boden attempts to make peace with Grissom; Hermann, Otis and Kidd take action when Molly's receives a bad Yelp review; Severide reaches out to his father for a favor.

Gorsch continues his reign of terror at Firehouse 51, taking over Boden's morning meeting and going out on calls in Boden's place; Brett and Foster respond to a call where a Halloween prank has turned deadly serious.

Kidd and the team embark on a mission to help Severide as he struggles to process his father Benny's death; Brett suspects a teenage driver in a car accident is hiding something.

Severide lands in grave danger when Firehouse 51 battles a risky structure fire; Casey lends another helping hand to Naomi, the investigative reporter; Herrmann, Mouch, Otis and Cruz search for a tantalizing memento from Boden's past.

Firehouse 51 responds to a massive freeway accident that impacts someone close to them; Foster runs into someone from her past after a harrowing call; Casey and Naomi grow closer; Severide and Kidd's relationship is tested.

Casey and Naomi fight to escape a raging fire in Casey's apartment; Brett and the team struggle to create an engaging community fire safety presentation; Severide and Kidd's relationship reaches a crossroads.

Foster faces blowback after pointing out a doctor's oversight; Brett helps Casey look for a new apartment; Kidd prepares Tuesday the Dalmatian for the Fire Safety Dog Competition; a serious accusation is leveled against Severide.

Casey helps a reporter uncover the truth behind a trailer park fire; Boden attempts to make peace with Grissom; Hermann, Otis and Kidd take action when Molly's receives a bad Yelp review; Severide reaches out to his father for a favor.

Gorsch continues his reign of terror at Firehouse 51, taking over Boden's morning meeting and going out on calls in Boden's place; Brett and Foster respond to a call where a Halloween prank has turned deadly serious.

Kidd and the team embark on a mission to help Severide as he struggles to process his father Benny's death; Brett suspects a teenage driver in a car accident is hiding something.

Severide lands in grave danger when Firehouse 51 battles a risky structure fire; Casey lends another helping hand to Naomi, the investigative reporter; Herrmann, Mouch, Otis and Cruz search for a tantalizing memento from Boden's past.

Firehouse 51 responds to a massive freeway accident that impacts someone close to them; Foster runs into someone from her past after a harrowing call; Casey and Naomi grow closer; Severide and Kidd's relationship is tested.

Casey and Naomi fight to escape a raging fire in Casey's apartment; Brett and the team struggle to create an engaging community fire safety presentation; Severide and Kidd's relationship reaches a crossroads.

Foster faces blowback after pointing out a doctor's oversight; Brett helps Casey look for a new apartment; Kidd prepares Tuesday the Dalmatian for the Fire Safety Dog Competition; a serious accusation is leveled against Severide.

Casey helps a reporter uncover the truth behind a trailer park fire; Boden attempts to make peace with Grissom; Hermann, Otis and Kidd take action when Molly's receives a bad Yelp review; Severide reaches out to his father for a favor.

Gorsch continues his reign of terror at Firehouse 51, taking over Boden's morning meeting and going out on calls in Boden's place; Brett and Foster respond to a call where a Halloween prank has turned deadly serious.

Kidd and the team embark on a mission to help Severide as he struggles to process his father Benny's death; Brett suspects a teenage driver in a car accident is hiding something.

Severide lands in grave danger when Firehouse 51 battles a risky structure fire; Casey lends another helping hand to Naomi, the investigative reporter; Herrmann, Mouch, Otis and Cruz search for a tantalizing memento from Boden's past.

Firehouse 51 responds to a massive freeway accident that impacts someone close to them; Foster runs into someone from her past after a harrowing call; Casey and Naomi grow closer; Severide and Kidd's relationship is tested.

The disappearance of millionaire Frank Black.

CSIs determine that a girl's ex-husband had his parents assassinate her.

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.

A private school owner is kidnapped.

Parker is confronted with devastating news; an explosion traps Jules.

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.

A private school owner is kidnapped.

Parker is confronted with devastating news; an explosion traps Jules.

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.

Parker is confronted with devastating news; an explosion traps Jules.

A private school owner is kidnapped.

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 undercover 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.