by Hal Erickson
synopsis
In the conclusion of the four-part story "Revenge of the Cybermen," the Doctor (Tom Baker) is on the verge of successfully preventing the destruction of the solid-gold asteroid Voga at the hands of the Cybermen. All that is needed for the Doctor's triumph is the willingness of the plague-ridden Vogans to protect their own home world. Alas, this may not come to pass -- and if it does not, the future of the universe is dire jeopardy. Written by Gerry Davis, "Revenge of the Cybermen, Episode 4" first aired on May 10, 1975, as the final episode of Doctor Who's 12th season.
