Chicago Fire Season 7 Episode 21
Overview
A serial arsonist cold case is reopened when Lt. Severide finds a connection to a recent salon fire. Firehouse 51 celebrates a retirement party.
Director: Joe Chappelle
Guest Star: Daniel Kyri, Erin Breen, Jeanne T. Arrigo, Kate Middleton, Randy Flagler, Teddy Sears, Zenzi Williams