The TV series "Firebug" is a detective drama based on real events, centered around the investigation of a series of mysterious arsons. In the 1980s, Southern California is plagued by a string of fires. Based on evidence and eyewitness accounts, it becomes clear that the fires are not accidental, but the result of someone's malicious intent. The fires are extinguished by Captain John Leonard Orr's team, who seems to know more about the crimes than meets the eye. The investigation is taken on by a seasoned police officer and a taciturn private detective.