Erin Breen

Nervous about Laurie's next steps, Richard takes matters into his own hands, letting his ego get the better of him during an interview. Dinesh, Gilfoyle and Jared misplace an important piece of hardware. Erlich faces unexpected pushback pitching his plans to Big Head.

Firehouse 51 responds to the scene of a harrowing blaze that endangers the lives of many, including one of the Chicago family.

While responding to a call, Dawson accidentally hits a pedestrian who steps out in front of the ambulance, and must deal with the repercussions.

Severide and Boden investigate a fire at a hair salon. A shocking discovery is made in the search for the missing piercing nozzle from Engine 27.

Severide and Kidd continue to investigate Benny's old arson case, unexpected news leads Brett to ponder a big decision and all hell breaks loose.

Severide finds a connection between a recent salon fire and a case involving a serial arsonist. Plus, Firehouse 51 throws a retirement party.