"Madmen and Fools"

Casey still helps his sister out by taking down his brother-in-law, Jim. Jim is leaving Casey's sister Christie and his niece Violet with little to nothing, Casey doesn't like that. Jim's mistress is keeping a secret too, it turns out she is wanted for a crime. So Casey uses her as black mail. In the end Christie got a better settlement, which made Casey happy.

The firehouse gets a call, a little boy named Archie got his head stuck in a balcony railing and his mother Catherine is holding it up, with not much time, the railing is about to fall! After the squad gets Archie's head out Brett decides to take him to the hospital to get checked out, his mother fights against the idea. While at the hospital her reason why she didn't want him to go to the hospital is clear. She and Archie have been at the hospital before and Child Protective Services were called on her and Archie was taken away.

The same thing happens again and Archie is taken away. So Catherine goes to the firehouse seeking allies, she pleads with Brett and Severide to help her out by explaining her situation to the Child Protective Services. Catherine and her ex have a history of alcohol abuse, but her ex is gone now and Catherine is clean.

Severide is cold to her and tells Brett not to get involved. He tells her about how Shay got attached to a patient and later on he had shot himself. He doesn't want Brett to get too attached. But Brett tells him second chances are important. Then they agree to help Catherine.

Child Protective services doesn't move fast enough for Brett. So she decides to go into the CPS office and demands that he takes care of Catherine and Archie, she told him she is going to sit in the office until he works on their case first. So he takes Catherine and Archie's file and opens it to look at it.

Newhouse is a secret private investigator, part repo man. This week he takes his newest partner Mills on a ride-along to fetch the prize possession of a client going through a bad divorce, her dog.

Dawson starts her training with Herrmann. She hated him treating her like a baby and she felt like she was left on the outside looking in. Herrmann cares deeply for Dawson and he takes this role seriously. He wants whats best for her and that means being prepared. Dawson may think she already knows skills from the academy but Herrmann believes a bit differently.

Everybody told Severide they couldn't go on the Vegas trip so he deiced to ask Brett who told him "I would love to but that wouldn't be a good idea."

But the trip continued and by the end of the episode we saw Severide kissing a stranger who won him money.