Severide's old friend arrives, hoping for a second chance with the Chicago Fire Department. Meanwhile, Mills tries to regain his active squad status, Mouch confronts his fear about meeting his child, and Brett and Dawson set out to have a big night out.moreless
Danny and Erin collaborate on a cold case involving a girl who was attacked by her boyfriend who was never convicted. A friend of Jamie's sues Danny's friend after an injury at a pick-up basketball game.moreless
Douglas discovers Elaine has plans to run for office again as T.J. revisits his old habits and hits rock bottom. Elaine has Bud negotiate for the lives of Iranian hostages, placing him back into the spotlight.moreless
Jared and Peter run into two lawyers defending one of infled ex–wives. Jared and Peter notice a lot of themselves in the two lawyers against whom they must prove that the ex-wife didn't kidnap a dog.
Karp must work with Pindar on a robbery case, but it may not be solved because the partnership could be broken due to Pindar's odd quirks.moreless
Riley decision to finally agree to a date with Mark could have life-altering consequences for her. Meanwhile, Linette and Lacey face the first day under their new boss and Dee Ann gets involved with a client.moreless