At the height of Jimmy's rage for Boden his judgement is skewed during a mission causing him to get severely burnt when he doesn't follow the chiefs orders. This is the last appearance of Jimmy Borelli.

Season 5 Episode 2 "A Real Wake Up Call"
Following Grant's attack on Stella and Severide, he is charged with attempted murder and placed back in psychiatric hold leading Stella to not press charges which infuriates Severide. Later on, Stella makes a most difficult decision. Meanwhile,after a falling out at Molly's, tensions grow worse with Jimmy when everyone on Truck refuses to work with him because his grief was affecting his attitude and they felt he was not mentally ready. Mouch and Brett continue to pursue writing an erotic book. Also, Casey finds himself in a tough spot after an alderman who had discovered the favor that lead to Dawson fostering Louie and uses it as leverage.later on,The firehouse responds to an accident and despite orders to stand back, Borelli walks towards the fire and gets burned and severely injured in the fiery flames. He is taken to Chicago Med and it is determined that he can no longer be a firefighter.

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