1978 | 1 h 40mins |U/A 13+| Action | Adventure | Drama | Science Fiction | TV Movie
The Doctor and Romana learn the second segment of the Key to Time is on the planet Calufrax. Yet they arrive on a planet called Zanak, which has been hollowed out and fitted with hyperspace engines, allowing its insane, half-robot Captain to materialise it around smaller planets and plunder their resources.