1 - Chicago P.d. - Season

The series premiere where the unit hunts a Colombian drug cartel. Adam Ruzek joins the team.

as Trudy Platt: The sarcastic, no-nonsense desk sergeant (recurring in Season 1, later a main cast member). Episode Guide Summary Chicago P.D. - Season 1

The season finale involves a massive manhunt for the escaped cartel leader Pulpo and a shocking betrayal within the unit. The series premiere where the unit hunts a

as Sergeant Hank Voight: The intense, often ethically-grey leader of the Intelligence Unit. Chicago P.D. - Season 1

A gun-smuggling case involves high-caliber rounds; Halstead faces a ghost from his past.

The season balances high-stakes criminal investigations with the personal dramas of the squad: Key Plot Points

as Detective Sheldon Jin: The unit's tech and surveillance expert.