Javi spends a couple of shifts at Firehouse 51.

Kidd and Carver work together to help Carver’s former boss.

As Hawkins and Violet’s relationship blossoms, Gallo turns his attention elsewhere.

Air Date: Wednesday, Sept. 28 (09:00PM – 10:00PM) on NBC.

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CHICAGO FIRE -- "Every Scar Tells a Story" Episode 1102 -- Pictured: Christian Stolte as Mouch -- (Photo by: Adrian S Burrows Sr/NBC)