A Texas playboy is murdered and police uncover x-rated photos, shocking videos and an object hidden inside the victim's body.

Phoenix police are faced with a unique serial killer team who get their thrills stalking and shooting innocent people at night.

A wealthy executive causes conflict after forbidding his neighbors access to his extensive lands; one local handyman fights to keep the roads and trails open for all, a struggle that ends when one man lies dead.

Police in Abbotsford, B.C. hunt a stalker who has left one teen dead and another barely alive.

When a girl calls 911, the dispatcher does not believe that an intruder has entered her house until gunshots are heard; upon arriving, the SRU discovers that the girl has been abducted.

A wealthy executive causes conflict after forbidding his neighbors access to his extensive lands; one local handyman fights to keep the roads and trails open for all, a struggle that ends when one man lies dead.

Police in Abbotsford, B.C. hunt a stalker who has left one teen dead and another barely alive.

When a girl calls 911, the dispatcher does not believe that an intruder has entered her house until gunshots are heard; upon arriving, the SRU discovers that the girl has been abducted.

A wealthy executive causes conflict after forbidding his neighbors access to his extensive lands; one local handyman fights to keep the roads and trails open for all, a struggle that ends when one man lies dead.

When a girl calls 911, the dispatcher does not believe that an intruder has entered her house until gunshots are heard; upon arriving, the SRU discovers that the girl has been abducted.

Police in Abbotsford, B.C. hunt a stalker who has left one teen dead and another barely alive.

Citing a need for improvement, Chief Anderson reassigns members of 51 to other firehouses, leaving the crew members to make the best of their respective new situations; Severide struggles with an important decision.

Fire and rescue are called when an old warehouse-turned-work space turns into a firestorm, trapping countless victims; the doctors and nurses of Chicago Med deal with a barrage of patients as victims of the disaster are brought through the doors.

Members of the fire and rescue squads become hostages when a group of armed gang members invades and assumes control over Firehouse 51 during a turf war.

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

An incident at the Geechee Club threatens to break up Bumpy and Chin's partnership; Adam Clayton Powell looks to end the filibuster on the Civil Rights Bill, even if it means playing dirty.

Three Freedom Riders are murdered in Mississippi, and Bumpy Johnson wants justice, as well as a hedge against Federal investigation; Chin Gigante evades imprisonment with an "insanity" defense, and Malcolm X delivers his most fervent call to action.

Members of the fire and rescue squads become hostages when a group of armed gang members invades and assumes control over Firehouse 51 during a turf war.

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.

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.

An incident at the Geechee Club threatens to break up Bumpy and Chin's partnership; Adam Clayton Powell looks to end the filibuster on the Civil Rights Bill, even if it means playing dirty.

Three Freedom Riders are murdered in Mississippi, and Bumpy Johnson wants justice, as well as a hedge against Federal investigation; Chin Gigante evades imprisonment with an "insanity" defense, and Malcolm X delivers his most fervent call to action.

Two women in neighboring apartments become fast friends before becoming sworn enemies; the women enlists their sisters as reinforcements in a war that escalates and ends in violence.

A killer who leaves messages signed "Jack" terrorizes East Point, Ga.

The team's actions, particularly Sgt. Parker's, are called into question after a shooting at a museum gala.

Two women in neighboring apartments become fast friends before becoming sworn enemies; the women enlists their sisters as reinforcements in a war that escalates and ends in violence.

A killer who leaves messages signed "Jack" terrorizes East Point, Ga.

The team's actions, particularly Sgt. Parker's, are called into question after a shooting at a museum gala.

Two women in neighboring apartments become fast friends before becoming sworn enemies; the women enlists their sisters as reinforcements in a war that escalates and ends in violence.

The team's actions, particularly Sgt. Parker's, are called into question after a shooting at a museum gala.

A killer who leaves messages signed "Jack" terrorizes East Point, Ga.

Archer and Asher clash over a patient with close ties to Goodwin; after a patient is shot during a home invasion, Scott and Marcel help with the investigation; Maggie and Halstead work to protect a patient who is in the country illegally.

Halstead and Asher work to save a surrogate's baby; Charles cares for a patient on a hunger strike; Choi and Archer help a patient with ties to Choi's late father; Scott and Maggie are stumped by a drunken patient who claims to be sober.

Scott helps the daughter of a mob boss; a grandmother comes to Med desperate to save her grandson; Choi struggles with some shocking news about his father; Halstead and Taylor care for Maggie's high school classmate.

Scott and Choi treat a patient who is shot during a drug raid; Charles and Taylor work together to properly diagnose a motivational speaker; Halstead and Asher turn to Marcel for help with a pregnant patient.

Halstead and Asher clash over a patient in need of a kidney transplant; Marcel faces a tough decision when Blake is in surgery; Choi and Archer treat the son of Med's general counsel; Med's family grows.

In the aftermath of Halstead's apartment fire, Marcel, Choi and Archer work together to try to save the survivors; Charles and Med's new fellow, Cuevas, helps a paranoid patient; Scott makes a life-changing decision.

Supply chain disruptions dramatically impact Med, causing Marcel to clash with other doctors; Maggie reveals something to Ben; Choi and Archer help a patient with ALS.

It seems all of Richmond Virginia is celebrating Independence Day 1960 until a slave wagon appears; among its sickly occupants is Mary Jane Richards, who is being questioned by Slave Patrol Officer Pike.

Halstead and Asher work to save a surrogate's baby; Charles cares for a patient on a hunger strike; Choi and Archer help a patient with ties to Choi's late father; Scott and Maggie are stumped by a drunken patient who claims to be sober.

Halstead and Asher work to save a surrogate's baby; Charles cares for a patient on a hunger strike; Choi and Archer help a patient with ties to Choi's late father; Scott and Maggie are stumped by a drunken patient who claims to be sober.

Scott helps the daughter of a mob boss; a grandmother comes to Med desperate to save her grandson; Choi struggles with some shocking news about his father; Halstead and Taylor care for Maggie's high school classmate.

Scott helps the daughter of a mob boss; a grandmother comes to Med desperate to save her grandson; Choi struggles with some shocking news about his father; Halstead and Taylor care for Maggie's high school classmate.

Scott and Choi treat a patient who is shot during a drug raid; Charles and Taylor work together to properly diagnose a motivational speaker; Halstead and Asher turn to Marcel for help with a pregnant patient.

Scott and Choi treat a patient who is shot during a drug raid; Charles and Taylor work together to properly diagnose a motivational speaker; Halstead and Asher turn to Marcel for help with a pregnant patient.

Halstead and Asher clash over a patient in need of a kidney transplant; Marcel faces a tough decision when Blake is in surgery; Choi and Archer treat the son of Med's general counsel; Med's family grows.

Halstead and Asher clash over a patient in need of a kidney transplant; Marcel faces a tough decision when Blake is in surgery; Choi and Archer treat the son of Med's general counsel; Med's family grows.

In the aftermath of Halstead's apartment fire, Marcel, Choi and Archer work together to try to save the survivors; Charles and Med's new fellow, Cuevas, helps a paranoid patient; Scott makes a life-changing decision.

We dig deep into the success of one of the most talked about shows on streaming.

Supply chain disruptions dramatically impact Med, causing Marcel to clash with other doctors; Maggie reveals something to Ben; Choi and Archer help a patient with ALS.

It seems all of Richmond Virginia is celebrating Independence Day 1960 until a slave wagon appears; among its sickly occupants is Mary Jane Richards, who is being questioned by Slave Patrol Officer Pike.

It seems all of Richmond Virginia is celebrating Independence Day 1960 until a slave wagon appears; among its sickly occupants is Mary Jane Richards, who is being questioned by Slave Patrol Officer Pike.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

Police discover a murdered teenage girl was involved in a love triangle.

Spike discovers his former mentor may be implicated in a tangled case involving corruption, drug dealers and an attempted gang execution.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

Police discover a murdered teenage girl was involved in a love triangle.

Spike discovers his former mentor may be implicated in a tangled case involving corruption, drug dealers and an attempted gang execution.

A single woman and her daughter are delighted when a single man and his two daughters move in next door; they become fast friends until molestation charges result in anger, accusations and multiple bloody deaths.

Spike discovers his former mentor may be implicated in a tangled case involving corruption, drug dealers and an attempted gang execution.

Police discover a murdered teenage girl was involved in a love triangle.

Following the devastating fire at the Nash home, Bobby's fate remains uncertain; Athena embarks on a mission to uncover the truth; Hen and Karin engage in a heated custody battle; Christopher grapples with forgiving Eddie.

Emergency response providers put their lives at risk to save others.

A night at an amusement park takes a deadly turn when a roller coaster malfunction leaves lives hanging in the balance; Abby reaches out to Buck; Athena and Hen respond to an unusual home invasion.

Bobby and his team respond to an emergency at a children's birthday party; the crew jumps into action after one of their own is involved in a devastating accident; Athena tries to cope with a tragedy that hits way too close to home.

Bobby and the team race to help the survivors of a deadly plane crash; Athena deals with chaos at the airport; Bobby confronts his past demons; Athena is out for revenge against teen bullies; Abby delivers an important message from a 9-1-1 caller.

The crew races to an emergency at an Indian wedding; Abby enlists Buck to help her find her mother; Abby meets Athena for the first time; Bobby confronts his past; Hen struggles to make the right decision.

Martin Best is a brilliant surgeon who abruptly leaves his illustrious career in Boston to become the general practitioner in a quaint East Coast fishing village where he spent summers as a child. Unfortunately, Martin's blunt and borderline rude bedside manner rubs the quirky, needy locals the wrong way, and he quickly alienates the town, even though he's all they've got. Although Martin can expertly address any medical ailment or mystery in this idiosyncratic town, he's really just desperate to be left the hell alone. Instead, he keeps getting dragged right smack into the middle of their personal chaos, feuds and fantasies. What the locals don't know is that Martin's terse demeanor masks a debilitating new phobia and deep-seated psychological issues that prevent him from experiencing true intimacy with anyone. But tenacity is the creed of everyone in their small village, and the people who live there may be exactly what the doctor ordered.

Following the devastating fire at the Nash home, Bobby's fate remains uncertain; Athena embarks on a mission to uncover the truth; Hen and Karin engage in a heated custody battle; Christopher grapples with forgiving Eddie.

Emergency response providers put their lives at risk to save others.

A night at an amusement park takes a deadly turn when a roller coaster malfunction leaves lives hanging in the balance; Abby reaches out to Buck; Athena and Hen respond to an unusual home invasion.

Bobby and his team respond to an emergency at a children's birthday party; the crew jumps into action after one of their own is involved in a devastating accident; Athena tries to cope with a tragedy that hits way too close to home.

Bobby and the team race to help the survivors of a deadly plane crash; Athena deals with chaos at the airport; Bobby confronts his past demons; Athena is out for revenge against teen bullies; Abby delivers an important message from a 9-1-1 caller.

The crew races to an emergency at an Indian wedding; Abby enlists Buck to help her find her mother; Abby meets Athena for the first time; Bobby confronts his past; Hen struggles to make the right decision.

On Valentine's Day, a surprise marriage proposal goes awry with dangerous consequences; Athena attempts to help a desperate woman; Bobby and Chimney pull holiday duty; Abby and Buck go on their first official date.

Martin Best is a brilliant surgeon who abruptly leaves his illustrious career in Boston to become the general practitioner in a quaint East Coast fishing village where he spent summers as a child. Unfortunately, Martin's blunt and borderline rude bedside manner rubs the quirky, needy locals the wrong way, and he quickly alienates the town, even though he's all they've got. Although Martin can expertly address any medical ailment or mystery in this idiosyncratic town, he's really just desperate to be left the hell alone. Instead, he keeps getting dragged right smack into the middle of their personal chaos, feuds and fantasies. What the locals don't know is that Martin's terse demeanor masks a debilitating new phobia and deep-seated psychological issues that prevent him from experiencing true intimacy with anyone. But tenacity is the creed of everyone in their small village, and the people who live there may be exactly what the doctor ordered.

Realizing a long-held dream, a Michigan couple relocates to Florida, then their life in the sun is destroyed after they get into a fatal conflict with their neighbor.

Todd Kendhammer claims his wife was killed in a car accident; the forensic evidence doesn't back him up; when a new defense team, known for working on the Steve Avery case is hired, they bring in their own forensic experts who contradict the case.

When Jules finds herself in the middle of a hostage situation at a restaurant, the SRUs are brought in to take care of the gunman, who believes the establishment's owner is a terrorist.

Realizing a long-held dream, a Michigan couple relocates to Florida, then their life in the sun is destroyed after they get into a fatal conflict with their neighbor.

Todd Kendhammer claims his wife was killed in a car accident; the forensic evidence doesn't back him up; when a new defense team, known for working on the Steve Avery case is hired, they bring in their own forensic experts who contradict the case.

When Jules finds herself in the middle of a hostage situation at a restaurant, the SRUs are brought in to take care of the gunman, who believes the establishment's owner is a terrorist.

Realizing a long-held dream, a Michigan couple relocates to Florida, then their life in the sun is destroyed after they get into a fatal conflict with their neighbor.

When Jules finds herself in the middle of a hostage situation at a restaurant, the SRUs are brought in to take care of the gunman, who believes the establishment's owner is a terrorist.

Todd Kendhammer claims his wife was killed in a car accident; the forensic evidence doesn't back him up; when a new defense team, known for working on the Steve Avery case is hired, they bring in their own forensic experts who contradict the case.

Charles and Cuevas clash over the treatment of a paranoid patient; Choi treats a pregnant patient from Asher's past; Marcel and Taylor help a man who needs a risky neurosurgery.

When a subway train goes off the tracks, Marcel volunteers to help the victims; Taylor and Halstead must decide if they're willing to risk their jobs to save a patient; Asher and Archer clash over a pregnant patient.

The effects of the supply chain shortages continue to impact the ED when Taylor's drug dealer reappears; one of the victims of the recent train crash needs a transplant, forcing Marcel to improvise; Charles and Cuevas help a patient with amnesia.

Marcel adjusts to his newfound fame when he helps Halstead treat a local restaurant owner; Choi, Charles and Goodwin aid a new mother who is worried about hurting her baby; Maggie and Taylor clash with a patient who is eager to get back to work.

Med runs out of scrubs, forcing the staff to improvise; the life of Archer's son is in danger; Marcel and Charles help a kidney transplant patient experiencing psychosis; Asher and Halstead grow closer.

Halstead and Marcel facilitate a trans-organ exchange; Asher and Cuevas help a sexual assault survivor; Choi and Archer treat a patient whose case could expose a fraudulent doctor; Grant and Maggie take a trip down memory lane.

Halstead relies on Marcel and Med's newly donated OR 2.0 to save his patient; Charles helps an elderly, confused patient who's mourning the loss of his high school sweetheart; as their wedding day approaches, Choi and April run into some roadblocks.

In an affluent DC suburb, a successful luxury car salesman is gunned down execution-style in his bed; the arrayed evidence eventually lead investigators to Mississippi and back as they close in on an unlikely assassin with a chilling motive.

When a subway train goes off the tracks, Marcel volunteers to help the victims; Taylor and Halstead must decide if they're willing to risk their jobs to save a patient; Asher and Archer clash over a pregnant patient.

The effects of the supply chain shortages continue to impact the ED when Taylor's drug dealer reappears; one of the victims of the recent train crash needs a transplant, forcing Marcel to improvise; Charles and Cuevas help a patient with amnesia.

Marcel adjusts to his newfound fame when he helps Halstead treat a local restaurant owner; Choi, Charles and Goodwin aid a new mother who is worried about hurting her baby; Maggie and Taylor clash with a patient who is eager to get back to work.

Med runs out of scrubs, forcing the staff to improvise; the life of Archer's son is in danger; Marcel and Charles help a kidney transplant patient experiencing psychosis; Asher and Halstead grow closer.

Halstead and Marcel facilitate a trans-organ exchange; Asher and Cuevas help a sexual assault survivor; Choi and Archer treat a patient whose case could expose a fraudulent doctor; Grant and Maggie take a trip down memory lane.

Halstead relies on Marcel and Med's newly donated OR 2.0 to save his patient; Charles helps an elderly, confused patient who's mourning the loss of his high school sweetheart; as their wedding day approaches, Choi and April run into some roadblocks.

In an affluent DC suburb, a successful luxury car salesman is gunned down execution-style in his bed; the arrayed evidence eventually lead investigators to Mississippi and back as they close in on an unlikely assassin with a chilling motive.

A man who is meticulous about his lawn bickers with a new neighbor who doesn't have the same priorities; the feud between the two men escalates, ultimately ending in an episode of shocking violence.

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

A botched plan leads to a crime boss escaping with his girlfriend, who works for the team as an informant.

A man who is meticulous about his lawn bickers with a new neighbor who doesn't have the same priorities; the feud between the two men escalates, ultimately ending in an episode of shocking violence.

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

A botched plan leads to a crime boss escaping with his girlfriend, who works for the team as an informant.

A man who is meticulous about his lawn bickers with a new neighbor who doesn't have the same priorities; the feud between the two men escalates, ultimately ending in an episode of shocking violence.

A botched plan leads to a crime boss escaping with his girlfriend, who works for the team as an informant.

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

Following the release of Ben's killer from prison, Jonah continues to struggle with anger and grief confronting the killer and putting family bonds to the test; Mae and Sarah face painful truths that could change everything.

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.

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.

Following the release of Ben's killer from prison, Jonah continues to struggle with anger and grief confronting the killer and putting family bonds to the test; Mae and Sarah face painful truths that could change everything.

Injured and framed for a string of murders, Colter, cut off from Reenie and Randy, must rely on unexpected ally Billie to stop a relentless assassin, uncovering a murky truth where justice and vengeance blur.

Haunted by fractured memories, Angelo questions his perception of reality; Joe helps Angelo plan a high-tech public assassination of a Russian mob accountant who is about to testify on live TV; detective Woods investigates one of Angelo's murders.

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.

Injured and framed for a string of murders, Colter, cut off from Reenie and Randy, must rely on unexpected ally Billie to stop a relentless assassin, uncovering a murky truth where justice and vengeance blur.

Haunted by fractured memories, Angelo questions his perception of reality; Joe helps Angelo plan a high-tech public assassination of a Russian mob accountant who is about to testify on live TV; detective Woods investigates one of Angelo's murders.

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.

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.

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.

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.

A full moon keeps the crew busy with crazy calls; Athena investigates a potential home invasion; Abby helps investigate a caller's murder; Bobby and Buck have their hands full at a yoga studio for pregnant women; Hen's past may become her future.

Bobby gets a surprising phone call from his doctor after donating at Chimney's blood drive; Athena confronts Michael after having a heart-to-heart with their kids.

The first responders race to help a homeless man crushed in a garbage truck, a mother and son in a crashed elevator, and extreme hoarders trapped in their house; Athena starts dating; the situation with Abby's mother tests her relationship with Buck.

The first responders take calls involving an unusual domestic disturbance, a "death" at a psychic's place, and a motorcycle crash; Bobby dips his toes into the dating pool; Abby walks down memory lane, and Buck is confronted by his past actions.

On one of the hottest days of the year, the first responders must deal with harrowing incidents all around the city; Buck gets a surprise visit from his sister; Athena questions her relationship with Bobby; Buck worries about a handsome new hire.

A massive earthquake rocks Los Angeles; the first responders rush to rescue victims from a crumbling high-rise hotel; Athena must deal with wreckage from a collapsed freeway overpass; Maddie faces her first crisis as a 911 dispatcher.

The first responders continue to deal with the fallout of a massive earthquake; Athena tries to keep the peace as Bobby and team continue to rescue victims from a collapsing high-rise hotel; Maddie must help a pregnant couple deliver their baby.

A full moon keeps the crew busy with crazy calls; Athena investigates a potential home invasion; Abby helps investigate a caller's murder; Bobby and Buck have their hands full at a yoga studio for pregnant women; Hen's past may become her future.

Bobby gets a surprising phone call from his doctor after donating at Chimney's blood drive; Athena confronts Michael after having a heart-to-heart with their kids.

The first responders race to help a homeless man crushed in a garbage truck, a mother and son in a crashed elevator, and extreme hoarders trapped in their house; Athena starts dating; the situation with Abby's mother tests her relationship with Buck.

The first responders take calls involving an unusual domestic disturbance, a "death" at a psychic's place, and a motorcycle crash; Bobby dips his toes into the dating pool; Abby walks down memory lane, and Buck is confronted by his past actions.

On one of the hottest days of the year, the first responders must deal with harrowing incidents all around the city; Buck gets a surprise visit from his sister; Athena questions her relationship with Bobby; Buck worries about a handsome new hire.

A massive earthquake rocks Los Angeles; the first responders rush to rescue victims from a crumbling high-rise hotel; Athena must deal with wreckage from a collapsed freeway overpass; Maddie faces her first crisis as a 911 dispatcher.

The first responders continue to deal with the fallout of a massive earthquake; Athena tries to keep the peace as Bobby and team continue to rescue victims from a collapsing high-rise hotel; Maddie must help a pregnant couple deliver their baby.

A full moon keeps the crew busy with crazy calls; Athena investigates a potential home invasion; Abby helps investigate a caller's murder; Bobby and Buck have their hands full at a yoga studio for pregnant women; Hen's past may become her future.

Bobby gets a surprising phone call from his doctor after donating at Chimney's blood drive; Athena confronts Michael after having a heart-to-heart with their kids.

The first responders race to help a homeless man crushed in a garbage truck, a mother and son in a crashed elevator, and extreme hoarders trapped in their house; Athena starts dating; the situation with Abby's mother tests her relationship with Buck.

On one of the hottest days of the year, the first responders must deal with harrowing incidents all around the city; Buck gets a surprise visit from his sister; Athena questions her relationship with Bobby; Buck worries about a handsome new hire.

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.

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.

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

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.

Chief Boden turns up the pressure on Severide and Casey to investigate the cause of the fire that trapped his wife; Mouch is over-competitive in the firefighter muster challenge.

Casey gets off on the wrong foot with a new chief; Casey makes a risky move to save a man threatening to jump off a building; Mouch flies in Cruz's brother Leon as a birthday surprise; Brett learns new information about her friend Hope.

While running a secret errand, Dawson finds herself trapped in a collapsed parking structure; pressure mounts on Casey as he begins taking on additional duties; Kidd grows increasingly skeptical of Hope.

Casey and Severide find themselves at odds after Casey argues about how to save a teenager entangled in barbed wire; Otis tries to convince Casey to participate in the beta test for an expensive piece of new firefighting equipment.

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.

Chief Boden turns up the pressure on Severide and Casey to investigate the cause of the fire that trapped his wife; Mouch is over-competitive in the firefighter muster challenge.

Casey gets off on the wrong foot with a new chief; Casey makes a risky move to save a man threatening to jump off a building; Mouch flies in Cruz's brother Leon as a birthday surprise; Brett learns new information about her friend Hope.

While running a secret errand, Dawson finds herself trapped in a collapsed parking structure; pressure mounts on Casey as he begins taking on additional duties; Kidd grows increasingly skeptical of Hope.

Casey and Severide find themselves at odds after Casey argues about how to save a teenager entangled in barbed wire; Otis tries to convince Casey to participate in the beta test for an expensive piece of new firefighting equipment.

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.

Chief Boden turns up the pressure on Severide and Casey to investigate the cause of the fire that trapped his wife; Mouch is over-competitive in the firefighter muster challenge.

Casey gets off on the wrong foot with a new chief; Casey makes a risky move to save a man threatening to jump off a building; Mouch flies in Cruz's brother Leon as a birthday surprise; Brett learns new information about her friend Hope.

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.

Two families with several children between them get along famously until one of the mothers starts to dictate to the other how she should be raising her children; battle lines are drawn, violence flares and blood runs in the street.

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

Team One members must undergo intense psychological testing; Ed, on his way to the hospital for the birth of his child, gets shot.

Two families with several children between them get along famously until one of the mothers starts to dictate to the other how she should be raising her children; battle lines are drawn, violence flares and blood runs in the street.

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

Team One members must undergo intense psychological testing; Ed, on his way to the hospital for the birth of his child, gets shot.

Two families with several children between them get along famously until one of the mothers starts to dictate to the other how she should be raising her children; battle lines are drawn, violence flares and blood runs in the street.

Team One members must undergo intense psychological testing; Ed, on his way to the hospital for the birth of his child, gets shot.

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

Kidd is surprised to discover she is being transferred out of the firehouse; Severide and Casey are suspicious and investigate; Otis and Herrmann discuss taking over a rundown bar; Dawson's frustration with her father reaches a boiling point.

Brett attempts to make a lifesaving decision; Otis prepares for the grand opening of Molly's North; Boden becomes emotional following the rescue of a famous blues player; Dawson tries to come to terms with how she has been dealing with her father.

Dawson must make a tough decision about a father who is addicted to painkillers; Herrmann gets into an altercation with a police officer; Otis and Cruz go on a mission to find out who Brett is dating; Donna's brother unexpectedly comes to town.

Dawson asks Severide for help; Brett and Kidd compete for Zach's heart; Otis, Herrmann and Mouch try to figure out the source of a terrible stench wafting throughout the firehouse.