The Doctor and Jo find themselves trapped inside an alien peepshow machine which showman Vorg and his assistant Shirna have brought to amuse the populace of the planet Inter Minor. Can they escape Vorg and the ferocious Drashigs?
| Directing | Barry Letts | Director |
| Writing | Robert Holmes | Writer |
| Costume & Make-Up | Angela Seyfang | Makeup Artist |
| Sound | Dudley Simpson | Original Music Composer |
| Writing | Terrance Dicks | Script Editor |
| Costume & Make-Up | James Acheson | Costume Design |
| Camera | Peter Hamilton | Camera Operator |
| Lighting | Clive Thomas | Lighting Director |
| Sound | Gordon Mackie | Sound |
| Art | Roger Liminton | Production Design |
| Crew | Brian Hodgson | Special Sound Effects |
| Production | Barry Letts | Producer |
| Production | Chris D'Oyly-John | Production Assistant |
| Visual Effects | John Horton | Visual Effects Designer |
