[s4e18] On The Warpath Apr 2026

: Stella Kidd shares a story about Kelly Severide's past romantic interest in her, revealing he once rappelled down her skylight while singing Frank Sinatra, an event that occurred years earlier when she was still married.

: Matthew Casey faces a difficult test in his new role as Alderman. He loses his first major vote after taking a stand against shady insulation work, realizing that political change is a slow process. [S4E18] On The Warpath

: Randall "Mouch" McHolland experiences a bout of cold feet before his wedding to Trudy Platt. After some encouragement from Christopher Herrmann and Kelly Severide, he follows through, and the two officially tie the knot at Molly's Bar. : Stella Kidd shares a story about Kelly

In the episode " On the Warpath " (Season 4, Episode 18), the story follows Sylvie Brett as she experiences a traumatic event while on duty . While tending to a victim with a leg wound, she witnesses a shooter arrive to finish the man off. The shooter then threatens her life, warning her not to go to the police. Meanwhile, several other key storylines unfold: : Randall "Mouch" McHolland experiences a bout of