Pascal and Severide revisit the storage facility fire in hopes of uncovering new evidence. Cruz helps Mouch take his studying to the next level. Novak prepares a proposal for Chief Robinson.

Severide gets wrapped up in an Illinois State Police investigation after discovering illegal guns on a call. A bird harasses Mouch on the apparatus floor. Kidd keeps an eye on Carver.

Kidd and Severide investigate a trucking company responsible for a string of accidents. Herrmann recruits Kylie to help get new radios. Firehouse 51 celebrates Violet’s birthday.

Violet risks her job to deliver a baby on a tragic call. Mouch, Capp and Tony help Cruz track down Javi’s stolen bike. Damon’s departure weighs on Severide.

Severide and Van Meter investigate a fire at a family-owned restaurant. Pascal questions Kidd’s leadership.

After Damon disobeys Kidd’s orders on a call, he turns to Severide to protect him. Herrmann searches for the perfect scent to spice things up with Cindy.