A street vendor in illegal fireworks is causing destructive trouble in the neighborhood and a rift in the Rorchek household with his wares.

Danny's birthday party sparks reminiscences about the youth, seen in flashbacks, and occasions a showing of the department's history of fire disasters.

Overstressed by the job's pressures, Ted considers resigning while a line of cheap knock-off video game consoles is causing fires.

A single oil field fire threatens to ignite the entire field. An egotistical expert is brought to help with the situation.

A drug addict starts a fire in a hospital, jeopardizing an emergency operation involving Danny's friend, and a lab containing a deadly virus.