While responding to a call involving a victim incapacitated with a leg wound, Sylvie Brett witnesses a cuddle and is threatened by the shooter not to go to the police. Unsure of what to do, she tries to track down Antonio from Chicago PD. Elsewhere, Firehouse 51 jumps into action when a fire breaks out inside a restaurant, trapping several people inside a vault. Meanwhile, with his wedding day to Trudy fast approaching, a nervous Mouch starts to get cold feet.

Episode Viewers and Ratings

Season 4 Episode 18 of Chicago Fire was watched by 7,680,000 viewers, resulting in a 1.50 rating in the 18-49 demographic.

Is Chicago Fire Renewed or Cancelled for Season 5?

Chicago Fire Season 4 Episodes...

• s04e01 - Let It Burn
• s04e02 - A Taste of Panama City
• s04e03 - I Walk Away
• s04e04 - Your Day Is Coming
• s04e05 - Regarding This Wedding
• s04e06 - 2112
• s04e07 - Sharp Elbows
• s04e08 - When Tortoises Fly
• s04e09 - Short and Fat
• s04e10 - The Beating Heart (1)
• s04e11 - The Path of Destruction
• s04e12 - Not Everyone Makes It
• s04e13 - The Sky Is Falling
• s04e14 - All Hard Parts
• s04e15 - Bad for the Soul
• s04e16 - Two T's
• s04e17 - What Happened to Courtney
• s04e18 - On the Warpath
• s04e19 - I Will Be Walking
• s04e20 - The Last One for Mom
• s04e21 - Kind of a Crazy Idea
• s04e22 - Where the Collapse Started
• s04e23 - Superhero

Chicago Fire Show Summary

No job is more stressful, dangerous or exhilarating than those of the Firefighters, Rescue Squad and Paramedics of Chicago Firehouse 51. These are the courageous men and women who forge headfirst into danger when everyone else is running the other way. But the enormous responsibilities of the job also take a personal toll.

With big reputations and hefty egos, the pressure to perform and make split-second decisions is bound to put squad members at odds. When a tragedy claims one of their own, there's plenty of guilt and blame to go around. In the middle of a divorce, Lt. Matthew Casey tries to go about business as usual, but can't help butting heads with the brash Lt. Kelly Severide of the Rescue Squad - and each blames the other for their fallen team member. When it's "go-time", though, they put their differences aside and put everything on the line for each other. This is a look inside one of America's noblest professions.