In the third episode of the four-part story "The Tomb of the Cybermen," three members of an archeolgical expedition on the planet Telos have conspired to revive the long-frozen Cybermen. No sooner has the Doctor (Patrick Troughton) digested this information than he is forced to deal with a new threat to the future of Mankind: The Cybermats, an army of killer robots. Originally telecast September 16, 1967, Doctor Who: The Tomb of the Cybermen, Episode 3 was written by Kit Pedler and Gerry Davis. ~ Hal Erickson, Rovi