Dizi Adı: Chicago Fire
Bölüm Adı: Category 5
Sezon/Bölüm: 3. Sezon 22. Bölüm
Yayın Tarihi: 5 May. 2015

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.