Casey must stay undercover in order to bring down Jack, while Dawson gets shocking news and finds herself in a life threatening situation on Chicago Fire.

Voight asks Casey to go undercover in order to expose Jack’s shady past, while Otis and Severide continue to argue over Rice on Chicago Fire.

An apartment fire with connections to rape and drug dealing paves the way for another three way crossover when Olivia Benson pops up on Chicago Fire.

Mills questions his future at Firehouse 51, while Dawson and Casey are confused about what will happen with their relationship now on Chicago Fire.

When disaster occurs, the team transport the victims to Chicago Med, but their day goes from bad to worse when a man claims to have an airborne disease on Chicago Fire.

Things get even more crazier when Herrmann attempts to save a toddler from a structural fire, while Brett and Cruz’s relationship reaches breaking poing on Chicago Fire.

Severide asks Boden to give his friend a second chance, but Otis and Casey have doubts whether it’s a good idea in the first place on Chicago Fire.

An apartment fire could cost Casey his job after Pat finds out about Casey sleeping with his ex wife, while Dawson goes on a date on Chicago Fire.

After Boden takes a leave of absence, the team at Firehouse 51 find themselves under new management, but who will be first to get in trouble? On Chicago Fire.

Temperatures drop in Chicago pushing some of the team to breaking point, while Dawson must care for a baby who is found on the driveway of the station on Chicago Fire.