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.

Firehouse 51 responds to a complex hostage situation. Cruz continues to make strides. Chief Tomlin gives Severide an impossible task.