Season 15

Firehouse 51 faces the fallout of the warehouse fire. The team welcomes a new crop of probies into the fold.

Violet and Novak grow suspicious of a mental health facility after treating an escaped patient. Severide feels heat coming down from HQ.

A mistake in the field lands a firefighter in the hospital; Herrmann looks to get one of their own back on track.

The FBI recruits Severide when an arson is staged to cover up the kidnapping of a judge's daughter.