The team investigates the murder of a professional informant after he's found dead outside an abandoned factory in Red Hook. Also, Maggie reconnects with an old colleague and mentor.

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 trust her younger sister, Erin, is truly staying out of trouble as a new college student in NYC.

After a bomb explosion devastates a residential apartment building, special agents Maggie Bell and Omar Adom “OA” Zidan of the New York office of the Federal Bureau of Investigation investigate a possible war between rival gangs – that is, until their prime suspects are discovered brutally murdered.

A serial bomber appears to be targeting Wall Street’s elite. Maggie and OA search for a suspect who seems dead-set on revenge, while Dana deals with Spencer Briggs, a cocky profiler brought in to consult on the case.

Maggie and OA lead the search for an abducted former biological weapons chemist.

Special Agents Maggie Bell and OA Zidan rush to track down an active sniper with an elusive motive as the body count continues to rise.

After a park ranger is shot dead by a masked assailant on Governors Island, the team discovers a string of connected crimes that leads them to their toughest roadblock yet: an online conspiracy theory community.

After eight people are fatally poisoned at a deli in New York City, special agents Maggie Bell and OA Zidan trace the crime to an unlikely culprit and conduct a sting operation to prevent further attacks.

Special Agents Maggie Bell and OA Zidan investigate the death of a safety inspector and its possible connection to a leak at a nuclear power plant.

As the team hunts a killer who is fatally shooting seemingly unrelated targets, an experience on the job has new agent Tiffany Wallace examining the tension between her career as an FBI special agent and the responsibility she feels to her community as a Black woman.

When a chaotic campus protest turns deadly, the team is called in to help quell the mayhem and track down the murderer. Meanwhile, Jubal is concerned when Tyler is detained along with a group of student protestors.

When an undercover FBI agent is killed in the field, the team makes the unnerving discovery that the identities of multiple undercover agents have been compromised, including Maggie who has been actively working to infiltrate an eco-terrorist group. Meanwhile, the team enlists the help of Special Agent Dani Rhodes, whose cover was also blown, to not only save their own but to aid in uncovering who was behind the leak.

Maggie and OA hunt down a ruthless group of robbers who are posing as police officers to target armored trucks.

When a judge and her daughter are murdered after she sentenced a man to life in prison, Maggie and OA search for the killer behind a possible retaliation. Dana has a vested interest in this case as she has a history with the victim.

When an alt-right provocateur is murdered after giving a speech at a university in New York City, Maggie and OA investigate the school's more extreme political groups and rely on OA's sister, Amira, a student, for help.

After a front-running female presidential candidate, Valerie Caldwell, is targeted with a car bomb, OA and Maggie must hurry to track down the bomber before they strike again. The case leads them to wonder whether this person is targeting Caldwell for her political aspirations or something else.

After a shooting at a nightclub, it appears that the FBI may have ignored previous threats from a local white supremacist group. Also, Kristen wrestles with her commitment to the Bureau and her responsibility to her community.

When a gunman opens fire at a homeless shelter in Astoria, the team is led toward a killer with connections to a Mexican cartel.

After two women are brutally murdered via napalm, Maggie and OA are led to a dating site where they discover a group of scorned users who are targeting women who reject them.

When two IRS special agents are stabbed to death in Brooklyn, the team is thrown into an investigation that leads back to the resurgence of the online conspiracy community of Duke Ducoyle, their suspect from a previous case.

Special Agent Maggie Bell, Special Agent OA Zidan and the team investigate the murders of 18 young women with help from a survivor associated with the deceased.

After a senator’s daughter is kidnapped and held for ransom, the FBI is called in to assist with finding the child before their time limit expires. However, in order to do so, they must dig into the senator’s past for clues to who did this to his family.

When an illegal arms broker turned informant is assassinated, OA assumes his identity and goes undercover to stop the sale of dangerous weapons, with help from Maggie and their former FBI instructor, Rowan Quinn.

When the daughter of a wealthy family is kidnapped in an attempt to gain notorious internet fame, Maggie and OA discover the kidnapper’s plans go far beyond abduction in order to never be forgotten.

OA and Maggie team up with members of the FBI’s Fugitives Department to track down a person wanted for murder who is also on America’s top 10 most wanted list.