Chicago Fire (2012)

S03E22 Category 5

Sgt. Voight convinces a resolute Lt. Casey to take on an undercover role to gather evidence against Jack Nesbitt's dubious activities. At the same time, Otis and Severide clash over their differing opinions on Scott Rice's character, leading to rising tensions within the truck and squad teams. In another part of the firehouse, Herrmann steps in to assist a colleague in need.