Doctor Who: The Pirate Planet (TV)

The tracer detects the second segment on the planet Calufrax. The TARDIS makes a bumpy landing, and the Doctor and Romana soon discover that they are not on Calufrax at all. They are in fact on Zanak, a planet that has been hollowed out and fitted with engines so that it can transmat through space and materialise around others - such as Calufrax - to plunder their mineral wealth, leaving them as shrunken husks held by gravitational forces in a 'trophy room'. Ostensibly in charge is the Captain, whose body has been partially replaced with robotic parts following a near-fatal crash, but he is merely a puppet controlled by his nurse - a projection of Zanak's original ruler, the aged Queen Xanxia.