Doctor Who: The Macra Terror (TV Soundtrack)
Ian Stuart Black Audio Book

An exciting 'lost' television adventure starring second doctor Patrick Troughton with linking narration by Colin Baker. The Doctor, Polly and Ben visit a human colony that appears to be one big holiday camp. They soon discover, though, that its inhabitants have been brainwashed by the Macra, giant crab-like creatures who have taken over the colony. The humans are being forced to mine a gas that is essential for the Macra to survive - but fatal to them. It's a scary race to rescue them, with Ben getting taken in by the Macra for a time, but eventually the time travellers manage to restore the colony's freedom.