Jesse Spencer, Joe Minoso Photo

From: Photo Flash: First Look - CHICAGO FIRE's 'Fireworks,' Airing 3/20

On CHICAGO FIRE's upcoming episode, titled 'Fireworks,' with tensions still running high between Chief Boden (Eamonn Walker) and Bennie Severide (guest star Treat Williams), things boil over when Mills confronts Bennie about the fire that killed his father. 'Fireworks' airs March 20 at 10:00 p.m. on NBC.