The Liberator crew fly to Aristo to deliver the supplies to Ensor, in exchange for radiation drugs and the computer Orac, which Ensor gives to Blake before he dies. Orac predicts the destruction of the Liberator.
| Name | Type | Role | |
|---|---|---|---|
| Terry Nation | Writer | ||
| Derek Farr | Guest Star | ||
| Vere Lorrimer | Director |