Casey wakes up in the middle of the night. Dawson is not in bed. He goes and finds her on the computer still looking for Bria. She even asks about taking the day to keep at it. Kidd will sub on ambo.
At the house Brett notices that something smells rank in the bunk room. Before they can look into it, the alarm sounds. There is a woman stuck in a rotating door. Her foot is trapped under one of the panels. They have to break the door to get her out.
While they pack up, a guy approaches Severide. He recognizes him from the night before. He was in the alley that Severide and Dawson were looking for Bria in. He’s got a lead on where she used to hang in school. Once the kid walks away, Casey approaches. He didn’t know what they were up to the night before.
Now he’s cranky and the bunk room smells worse. He snaps at Otis about cleaning up. Severide gets a call from Dawson. She’s taking a ride to Joliet to see about an aunt. Severide says he will check on his end too. Dawson still hasn’t told Casey. Severide mentions it.
Severide rolls to the market and finds some kids hanging out. They scatter but one drops her phone and comes back. Severide finds out that Bria was looking to go see her dad in a mandatory rehab but she should’ve been back.
The guys are trying to figure out what the smell is in the bunk room. They clear out the beds and keep searching. Casey goes to Boden about working elsewhere to avoid the distraction and gets himself a new office in the process.
Ambo gets a call. On the ride, Kidd and Brett trade tips about ambo. They help a woman who was mixing chemicals in her basement and passed out. They load her in the ambo as hazmat cleans the scene. Kidd checks in with one of the hazmat guys and she stares after him just a little too long.
Mouch thinks the smell is coming from the plumbing. He goes to the pipe room and sends Otis for tools. This won’t end well. Severide goes to see Bria’s dad. He’s beating himself up about Bria not loving him. She left a note on the window though, proof that she cares. Severide tells him to just focus on getting clean.
Dawson finds the aunt. She finds out that Bria’s mother killed herself and the aunt thinks Bria is better off without her father. She reports back to Severide before heading back to the city. At the house, Mouch took apart the plumbing and now can’t get all the pieces back together. Oh and Otis played whistleblower and called HQ about mold.
Brett has a great idea. She calls the hazmat guy to come check over the station. Then her and Kidd argue over who gets dibs. They are both playing for keeps on this one. Casey turns down Boden’s offer of the new office after listening to a voicemail from Dawson and realizing he’s become distant.
Hazmat man turns up and uses a magic wand to find a dead rodent in the room divider. It’s the guinea pig Herrmann’s kid gave the house. He is disappointed. Hazmat man is ready to leave and Kidd gives him a solid handshake goodbye. Brett gets a minute alone and with him and talks up Kidd. He asks for her number.
Casey tells everyone to get the bunk room back together. He goes back into his office but leaves the door cracked open. At Molly’s Otis unveils a painting of the guinea pig and it gets Herrmann mad. He makes Otis, Cruz and Mouch put money in a pitcher to be donated to the humane society.
Kidd has got a date with hazmat guy. She tells Brett and then thinks it might’ve been a setup because Brett pitied her. Brett tells her that’s not the case. They hug it out. Dawson is at the bar telling Casey and Severide all she knows about Bria’s family. She had Antonio look into it. Her phone rings. When she hangs up she’s got to go. There is a teenage Jane Doe at the morgue, with her card.
I’m going to assume that the dead girl is Bria because I really don’t see them dragging this out for another week but I feel like that’s a shame. It also seems like a missed opportunity because that was the perfect setup for a crossover. Is there one this season? I haven’t heard anything. I feel bad for Dawson and I’m not sure what this whole confiding in Severide and Casey gets angsty thing is about. I like that they used hazmat and I figure dude will be around for at least a few episodes.