: Kelly Severide and Christopher Herrmann clash over who should inherit Matt Casey’s old office space.

: Tensions between Blake Gallo and Pelham reach a breaking point as Gallo continues to resent Pelham for taking over Casey’s former spot on Truck 81.

: Sylvie Brett and Darren Ritter stage a small "intervention" for Violet Mikami, pushing her to admit her true romantic feelings for Gallo.

In , titled "What Happened at Whiskey Point?" , the central story revolves around Chief Boden investigating the mysterious past of Lieutenant Jason Pelham to decide if he should become a permanent member of Firehouse 51. Key Storylines