Patrick Mulvey

Tony sees a former police informant he believed to be dead, when the team investigate the death of a sailor outside Baltimore.

Detective Voight plays with fire to get Lieutenant Casey to retract his statement; paramedic Dawson receives help from a girl she saved.

The TAC team get a rare glimpse into Bull's personal life when his estranged brother of 13 years, Jacob Bull, unexpectedly arrives; a financial investor is accused by the FBI of running a Ponzi scheme with his father.

Ruzek's father is the first on a double murder scene; Lindsay prepares for an investigation in Bolivia; Burgess and Roman try to move forward.

The night before Kate's wedding, Kevin's love-life takes an unexpected turn.

Cosgrove and Shaw suspect an art dealer was murdered but can't make an arrest until they locate her body; Price and Maroun must go to trial with a circumstantial case and a suspect with unlimited resources; the squad celebrate a birthday.