The Liberator crew journey to a planet where a friend of Avon's works, in order to get TP crystals. The derelict spaceship K-47 is retrieved, and an on-board virus spreads throughout the complex.
| Name | Type | Role | |
|---|---|---|---|
| Robert Holmes | Writer | ||
| Colin Farrell | Guest Star | ||
| Michael Gaunt | Guest Star | ||
| Morris Barry | Guest Star | ||
| Paul Daneman | Guest Star | ||
| Colin Farrell | Guest Star | ||
| Ronald Lacey | Guest Star | ||
| Colin Higgins | Guest Star | ||
| Vere Lorrimer | Director |