The Beating Heart (I)

Chicago Fire

Runtime: 42m
Air Date: Aired Jan 5, 2016

Herrmann fights for his life after being stabbed; Cruz hits the streets to find Freddie. Mouch proposes to Trudy. The crossover continues on Chicago Med S01E05 Malignant (II) and Chicago P.D. S03E10 Now I'm God (III).