Category 5

Overview

At Sgt. Voight's urging, a determined Lt. Casey agrees to go undercover in an effort to provide proof of Jack Nesbitt's shady dealings. Meanwhile, Otis and Severide continue to disagree about the integrity of Scott Rice, causing tensions to flare between members of truck and squad. Meanwhile, Herrmann helps out a fellow member of the firehouse.

Guest Stars

Dora Madison

Jessica 'Chili' Chilton

Samuel Hunt

Greg 'Mouse' Gerwitz

Jason Beghe

Hank Voight

Jon Seda

Antonio Dawson

Randy Flagler

Harold Capp

Eric Mabius

Jack Nesbitt

Warren Christie

Scott Rice

Izabella Miko

Katya