A series of mysterious gas leaks has members of Firehouse 51 puzzled and spread thin. Brett’s conflicted when her birth mother gets serious about finding her. Severide misunderstands his role as Cruz’s best man. Mouch bites off more than he can chew.
In one last family trip, they head to Paris so Jay can accept a lifetime achievement award in the closet industry, but his old nemesis comes back to haunt him. Claire has a secret rendezvous in one of the most romantic cities in the world. Cam’s lifelong dream of performing as Fizbo on the streets of Paris is about to become a reality.