(103/5F: The Armageddon Factor)

Twin planet of Zeos, located at the edge of the Helical Galaxy, involved in an unending space war against its neighbor. The Atrian Marshal was secretly controlled by the Shadow who desired to obtain Princess Astra, in reality the sixth segment of the Key to Time. Atrios and Zeos were saved from mutual destruction by the Fourth Doctor, Romana and Drax (5F).


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