The team must infiltrate a drug trafficking gang after the robbery of a chemical plant leaves two customs agents dead. Also, Nestor offers his help on the case, giving Maggie…

After a man is killed by an explosive package shipped to his home, the team attempts to capture the sender and intercept his latest deadly parcel. Also, Maggie tries to…

When five prominent men are killed at a trendy New York City restaurant, the team’s investigation brings them into contact with a lieutenant in Antonio Vargas’ cartel, triggering a long-awaited…

When the leader of a drug cartel and one of the world’s most wanted men, Antonio Vargas, is apprehended by the team, the entire FBI headquarters is put at risk…

The team welcomes a new member, Special Agent Tiffany Wallace, as they search for killers who orchestrated a mass shooting at a media company, and OA’s personal connection with the…

When a prominent doctor is found dead in a ritualistic slaying, the team must race against time to hunt down a religiously motivated serial killer. Also, Scola faces a life-or-death…

After a mysterious bioweapon leaves two MTA workers dead and one injured, the team rushes to determine who is behind the attack and the location of their next target; Jubal’s…

As the team works to rescue a 5-year-old kidnapping victim, Scola suspects the boy’s mother isn’t being forthcoming about why her son was targeted. Also, Nina struggles to open up…

A teen shows up at FBI headquarters with a large bag of fentanyl, seeking the team’s protection from the men who shot his father; Nina goes to Scola with a…

The team pivots when their sting operation to secure a massive bomb from an illegal broker leads them to discover that the device is already in the wrong hands. Also,…

As the team investigates a deadly robbery that garnered a cache of automatic weapons for the killers, they discover one of the perps is a classmate of Jubal’s son, who…

When a Muslim college student and his younger brother are murdered, the team connects with the outraged imam of OA’s former mosque, who insists the victims were wrongly targeted as…

When a young couple is found murdered in a New York City park after returning from vacation, the team searches for a suspect linked to the drug trade. Also, Scola…

After a young woman is killed on her way home from a lavish yacht party, the team investigates who she was and how she came to be at the event,…

The team finds a connection between bombings and a private veterans’ club in New York City; Isobel tells a reluctant OA to recruit a former Army buddy for intel.

After Rina is critically wounded while heading to work with Jubal, the team makes the chilling discovery that a vengeful Vargas orchestrated the shooting from behind bars and continues to…

After a businessman with a history of harassment claims against him is killed, the team suspects the killer may be one of his many accusers.

When a U.S. attorney is found dead steps away from the body of a private escort, the team must piece together what connected the two seemingly random victims. Also, Jubal’s…

After an altercation with a student, a teacher goes missing, leading the team to investigate everyone who might have had a grudge against him. Also, a key witness in the…

After the son of a prominent Mommy blogger is kidnapped, the team must sweep through her two million followers to find the culprit. Kristen continues to adjust to life as…

Philip and Elizabeth’s troubled marriage is further tested when a mission to discredit a Polish pro-democracy leader reunites Philip with his old flame.

When Eddie and Jamie become overly involved in a complicated adoption case between the birth and adoptive parents, they ask Erin to help them settle the dispute without going to…

While investigating the murder of a man who killed a mother and son years earlier while driving drunk, Danny and Baez are torn between doing their job and finding justice…

Erin is conflicted by the weight of her authority in the sentencing of a man who is guilty of vehicular homicide; Danny and Baez pursue a rideshare rapist; Jamie and…

Erin investigates a case involving a police officer accused of killing a suspect in custody; Jamie encourages Eddie to forgive her father.

Danny and Baez search for a Marine veteran who may have PTSD; a woman seeking justice for her murdered daughter catches Frank off-guard during a press conference.

Linda needs Danny and Baez’s help after a co-worker has difficulties with an angry ex. Erin’s former mentor has been giving out unfair sentences following the death of his wife.

When a suspect voluntarily admits to killing a reality show celebrity chef in his own restaurant, Danny and Baez are convinced the suspect is taking the fall for someone. Also,…

When Danny and Baez suspect a little girl might be the victim of a kidnapping, the girl’s mother denies it, but her story doesn’t add up. Meanwhile, Frank pays a…

Jamie has become a target after intervening in an abusive relationship. Elsewhere an illegal recording of Henry making insensitive comments is leaked.

When Danny finds a disoriented man in a park covered in his girlfriend’s blood, he finds it hard to believe that the man has no recollection of the night’s events…

Before a Hasidic Grand Rebbe passes away, he chooses his youngest son to succeed him. But when the new appointee dies suddenly, Danny investigates the oldest son and others within…

Frank deals with a political crisis after Jamie and Renzulli are injured by a church security team that refuses to let them enter a religious center in response to a…

A dangerous criminal from Danny’s past comes back to seek revenge and kidnaps Jackie. Meanwhile, Jamie meets his new partner, while a young officer is shaken after he accidentally shoots…

A power outage at Med puts multiple patients at risk and tests the skills of the staff and their enthusiastic med students; Natalie returns following her traumatic brain injury; Ethan…

It’s a family reunion when Dawson and Antonio’s mother and father come to Chicago for their big anniversary party, but things quickly turn south. When a deep secret comes to…

When a call comes in from the Cook County jail, the squad steps into a volatile predicament and are tasked with trying to defuse an escalating situation. Shay remains hopeful…

Severide finally addresses Chief Boden about his injury and makes some important personal decisions about his future. Meanwhile, Casey struggles with family matters and Dawson takes matters into her own…

In part one of the crossover with Law & Order: During a house fire, Firehouse 51 rescues the owner from the cellar clutching a suspicious box, leading Lt. Severide to…

All seems lost with firehouse 51 on the verge of closing its’ doors, thanks in no small part to Gail McLeod, but Chief Boden and the rest of the house…