SEASON 12 PREMIERE

In the season 12 premiere episode, “Barely Gone,” an arson case tests Kidd and Severide’s relationship.

Meanwhile, Firehouse 51 is forced to share its space with Firehouse 17.

And as Kidd and Herrmann fight over Ritter, Firehouse 51 says goodbye to one of its own.

“Air Date: “Barely Gone” airs Wednesday, January 17 (9-10 p.m. ET) on NBC.

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CHICAGO FIRE -- "Barely Gone" Episode 12001 -- Pictured: (l-r) Hanako Greensmith as Violet Mikami, David Eigenberg as Christopher Herrmann, Daniel Kyri as Darren Ritter, Miranda Rae Mayo as Stella Kidd, Kara Killmer as Sylvie Brett -- (Photo by: Adrian S Burrows Sr/NBC)