Earth, 1964. An accident on landing has greatly reduced the TARDIS and the travellers in size. They come across a scheme run by Forester, a ruthless businessman and his misguided scientist colleague Smithers to launch a new insecticide which is capable of destroying the local ecology. Forester is prepared to commit murder to secure the success of this project, but the inch-high travellers face danger of another kind.
| Name | Type | Role | |
|---|---|---|---|
| Louis Marks | Writer | ||
| Frank Crawshaw | Guest Star | ||
| Reginald Barratt | Guest Star | ||
| Pat Gorman | Guest Star | ||
| Alan Tilvern | Guest Star | ||
| Mervyn Pinfield | Director |