The Liberator reaches Space City where Blake seeks the assistance of the Terra Nostra, a criminal group who control the deadly drug Shadow. Blake must find out what the link with the Federation is, and why Orac is telepathically torturing Cally. The key appears to be the planet Zonda.
| Name | Type | Role | |
|---|---|---|---|
| Chris Boucher | Writer | ||
| Adrienne Burgess | Guest Star | ||
| Vernon Dobtcheff | Guest Star | ||
| Archie Tew | Guest Star | ||
| Derek Smith | Guest Star | ||
| Karl Howman | Guest Star | ||
| Jonathan Wright-Miller | Director |