The TARDIS lands on the Moon in 2070 and Jamie is injured during a spacewalk. The travellers are treated with suspicion at the weather control moonbase where a plague has struck.
| Name | Type | Role | |
|---|---|---|---|
| Kit Pedler, Gerry Davis | Writer | ||
| Alan Wells | Guest Star | ||
| Victor Pemberton | Guest Star | ||
| Mark Heath | Guest Star | ||
| Edward Phillips | Guest Star | ||
| Derek Calder | Guest Star | ||
| Michael Wolf | Guest Star | ||
| Leon Maybank | Guest Star | ||
| Patrick Barr | Guest Star | ||
| André Maranne | Guest Star | ||
| Arnold Chazen | Guest Star | ||
| Ron Pinnell | Guest Star | ||
| Robin Scott | Guest Star | ||
| Morris Barry | Director |