Kidd is nervous about going to the meeting for lieutenant’s candidates, but Severide says everything will be fine and promises to help her study.
While the other candidates are impressed by Kidd, Severide learns some at the CFD only think Kidd is eligible for the promotion because she is sleeping with Severide.
Instead of telling Kidd the truth, Severide decides to keep his distance, believing it is the best thing for both of them.
Casey and Brett talk about their hookup, and Brett says it can never happen again.
While Casey says his feelings for Dawson doesn't change how he feels about Brett, she feels otherwise.
During a call, the aerial ladder bucks and almost throws Casey off.
Mouch is blamed for the mistake, but Herrmann does some investigating and finds out that Truck 81, which was purchased for Firehouse 51 by Gorsch, had been recalled.
Gorsch was supposed to get the firetruck fixed but didn't.
Casey apologizes to Mouch, and all is forgiven.
Working as Boden assistant, Kylie finds a standing desk and encourages Boden to use it.
While Boden hates the desk, he doesn't want to hurt Kylie's feelings and begrudgingly uses it.
Kylie later confronts Boden and tells him she just wants to be treated like everyone else.