The Organized and Serial Crime Unit is called when a string of deaths at a hospital appears suspicious.
The Organized and Serial Crime Unit travels to the Pacific Northwest to investigate a series of murders.
A series of random killings forces Creegan to question whether or not his friend is capable of murder.
Creegan returns to his hometown of Boston with the team to pursue a serial killer who targets victims belonging to many religions.
A woman trying to locate her biological son witnesses a contract killing; Branca brings down a Ukrainian child-smuggling ring.
A paroled serial killer is the suspect in a woman's murder.
Creegan and the elite crime squad rush to keep a group of teenage druggie artists from graduating from animal cruelty to homicide.
Creegan searches for the killer who is targeting members of an army unit that served in Iraq.
Creegan uncovers some devastating news about the reporter that Branca is dating.
Women are found beaten to death outside strip clubs.
Creegan battles insomnia while trying to track down a killer who burns his victims.
The detectives of the FBI's Organized and Serial Crime Unit specialize in solving high-profile crimes.