Overview: The M squad is called in after a series of factory fires occur in the Chicago area. The case become complex after the unusual chemical signature of the fire accelerants is identified.
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First Air Date: Sep 20, 1957Last Air date: Jun 21, 1960Season: 3 SeasonEpisode: 117 EpisodeRuntime: 30 minutesQuality: HDIMDb: 5.20 / 10 by 6 usersPopularity: 59.115Language: English