Hayes jeopardizes a case to rail a mobster when he realizes that the mob informant is responsible for the murder of a woman that Hayes investigated while he was still a cop.

Hayes investigates a connection between a murder victim and a politically connected attorney, and discovers that his closest friend has been implicated in the kickback scheme.

Michael investigates police corruption on the NYPD, which worries the district attorney and alarms Eddie, whose friend may be indicted. Meanwhile, Danny tries to reconcile with Caitlin, who is mourning Rebecca's death.