"Fire" (Part 1) is the season premiere of the fourth season of the American police drama television series Homicide: Life on the Street. It originally aired on NBC on October 20, 1995. The episode was written by Julie Martin (from a story by Tom Fontana and Henry Bromell) and was directed by Tim Hunter. The two-part story centres on Pembleton and Bayliss' investigation into a pair of arson-related homicides, and introduces a new regular character, Arson Squad detective Mike Kellerman (played by Reed Diamond), who subsequently transfers to Homicide and partners with Det. Meldrick Lewis. This episode also flagged the permanent departure of regular characters Stanley Bolander (Ned Beatty) and Beau Felton (Daniel Baldwin).