Overview: A series of apparently unconnected explosions reveals a web of intrigue. Barlow's enquiries touch a raw nerve in high places and he takes a big personal risk.
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First Air Date: Sep 15, 1971Last Air date: Feb 26, 1975Season: 4 SeasonEpisode: 29 EpisodeRuntime: 50 minutesQuality: HDIMDb: 6.00 / 10 by 2 usersPopularity: 13.971Language: English