Severide, Kidd and Van Meter investigate a fire at a recording studio. Kylie helps James keep a secret from Boden. Mouch struggles to maintain boundaries with a paramedicine client.
Izzie faces her past and finds comfort in George; Alex has an attachment to Jane Doe; Meredith and Derek question their status; Cristina resolves to fight for her relationship with Burke.
Firehouse 51 is forced to share its space with Firehouse 17. Kidd and Herrmann fight over Ritter. An arson case tests Kidd and Severide’s relationship. Firehouse 51 says goodbye to one of its own.
Julia spends a couple of days at 51. Boden's stepson, James, returns desperate for Boden to help his mother. After a little girl starts a fire in her backyard, Kidd and her team decide to dig deeper.
When an expensive portrait is stolen from a young woman, Peter and Neal set a sting for the cunning and deadly culprit. Neal must uncover the secret truth of the portrait’s origin even as the net tightens around the villain – and around Neal himself!