SuperTed is called to the Pennines to rescue two geologists who are trapped in a cave, but soon finds himself in an awful dilemma when Spotty Man disappears and he has to choose to save his friend or the geologists first.
- Derek Griffiths as SuperTed
- Peter Hawkins as the Narrator
- Jon Pertwee as Spottyman
- Myfanwy Talog as The two women potholers