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Despite the security implicit in its name, the Ministry of Top Secret Information is the site of a brutal murder. This leads Steed and Tara to the inescapable conclusion that the Ministry harbors a traitor in its bosom. There's only one problem: The most logical suspect is a man whom Steed killed several years earlier. Written by Brian Clemens, "Split!" was first telecast in America on April 10, 1968; its British TV debut was delayed until October 23 of that same year.