Chicago Fire › Season 2

S2 E20: A Dark Day (I)

Name: A Dark Day (I)
Released: 2014-04-29

Lt. Casey and Dawson volunteer to help at a charity run at Chicago Medical when a massive explosion sends Chicago into chaos. With one of their own missing in the blast, the firehouse is tested like never before. The crossover continues on Chicago P.D. S01E12 8:30 PM (II)

Air date	Apr 29, 2014
Runtime	42 minutes
TMDB rating	★ 8.6/10