On Tonight

Cassidy is forced to infiltrate a corrupt precinct whose officers are suspected of raping young women during their shifts.

Munch's retirement party is interrupted by an accusation by a recent rape victim that she has been attacked for a second time.

Serveride is met with unexpected news, as Voight returns.

Severide pulls out all of the stops in hopes of resolving his problems.

A teen is killed by a bullet during a party and his friend loses his freedom to what he says is a lie.

Identical twins find their mother's dead body in their home, located in a gated community.

Police a lawyer dead and his girlfriend bound in duct tape.

Halstead goes undercover at a corrupt treatment center for troubled young girls.

Intelligence investigates a home explosion with no witnesses and a victim burned beyond recognition.

When a desperate father comes looking for a hitman to take care of his daughter's murderer, her case is re-opened by the intelligence team.