On the Warpath Chicago Fire : Season 4 Episode 18
TV-14 NBC 43m
Aired: April 5th, 2016 @ 9:00 PM EST on NBC
Sylvie witnesses a murder and is threatened by the shooter not to go to the police. Firehouse 51 jumps into action when a fire breaks out at a restaurant and traps several people inside a vault. Mouch starts to get cold feet.
