Overview: Zigorin, a top Russian spy, has defected to the West. But is he really Zigorin or an impostor?
Watch Trailer
First Air Date: Sep 01, 1973Last Air date: Feb 23, 1974Season: 1 SeasonEpisode: 26 EpisodeRuntime: 25 minutesQuality: HDIMDb: 6.67 / 10 by 3 usersPopularity: 18.323Language: English