I’m Not Leaving You – in the Season 7 finale, Severide and Kidd continue to investigate Benny’s old arson case, unexpected news leads Brett to ponder a big decision and all hell breaks loose.
The White Whale – A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire. Firehouse 51 celebrates a retirement party.
Try Like Hell – Severide and Boden search to uncover whether arson was the cause of a fire at a hair salon. Mouch, Herrmann, Otis and Kidd make a startling discovery in tracking down the missing piercing nozzle from Engine 27.
No Such Thing as Bad Luck – Severide gets angry at Cruz when he feels his orders were disobeyed in the field. Boden reconnects with an old high-school friend during a call to a house fire. Herrmann has issues when one of his favorite knick knacks from Molly’s goes missing.
Move a Wall – Tensions flare between Casey and Herrmann when the firehouse responds to an apartment complex fire. After discovering something extremely suspicious during the call, Kidd and Severide do some investigating and get CPD on the case. Brett struggles to deal with her emotions while Herrmann’s wife, Cindy, hopes to get her interior design business on track by taking a stab at redoing the common room.
Fault in Him – During an emergency call, an unsuspecting Lt. Casey suddenly finds his life in peril. Grissom warns the firehouse that they will need to gear up for a performance evaluation. Otis discovers he won a raffle prize at a recent fundraiser and Brett is met with challenges in her personal life.
What I Saw – A spate of robberies comes to light after a firehouse lockbox key goes missing. CPD’s Voight has suspicions that a firefighter may be involved, and with Boden’s support he recruits Cruz to go undercover and help sniff out any suspicious activity.
It Wasn’t About Hockey – Brett, Foster and Kidd take a road trip to Indiana for a getaway and encounter a bus accident involving a boy’s hockey team that will leave them scrambling and relying on their instincts to save those hurt in the accident. The rest of Firehouse 51 competes in the annual Chili Cook Off.
The Plunge – Cruz leads the charge in getting the firehouse to gear up for the Polar Plunge. Herrmann has a hard time bouncing back after dealing with a tough call. Foster’s personal relationships begin to interfere with her job.
Make This Right – The firehouse is called to a motorcycle crash, but Casey and Severide sense that the details don’t add up and work to determine exactly what transpired. A rift develops between Mouch and Otis. Brett, Foster and Kidd work to secretly fix a dent in the ambulance bumper they believe they unknowingly caused.