SEVERIDE CLASHES WITH THE COPS

Violet clashes with her new partner.

Severide discovers a hidden stash of money on a call and squares off against the cops working the case.

Mouch gets a parking ticket.

Air Date: Wednesday, March 20 (9-10 p.m. ET) on NBC.

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CHICAGO FIRE -- "Red Flag" Episode 12007 -- Pictured: (l-r) Jake Lockett as Sam Carver, Christian Stolte -- (Photo by: Adrian S Burrows Sr/NBC)