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Severide questions his actions after the team deals with a fire at a boarding school on the Chicago Fire season 2 fnale.
An explosion takes place when Casey and Dawson volunteer at a charity run on Chicago Fire.
Severide investigates Bloom's past while the firehouse deals with a tragedy of Chicago Fire.
Dawson and Shay have a girls' weekend away while Jones realizes that her father is putting pressure on Boden about her career on Chicago Fire.
Severide is reminded of his own past while helping an accident victim while Casey and Boden decide how to dock Jones on Chicago Fire.
Severide ends up at the top of the suspect list for Keeler's disappearance on Chicago Fire.
Severide struggles to believe justice will prevail when Vince Keeler goes free while the firefighters must free a girl trapped inside a donation bin on Chicago Fire.
With his sister missing, Severide feels left out of the search while Casey gets new information about his head injury on Chicago Fire.
When a power outage leaves the neighborhood in the dark on a cold night, Firehouse 51 steps in to help on Chicago Fire.
Casey tries to convince Dawson and Severide he's doing better.