As evidence for the defense at his ongoing trial, the Doctor presents an adventure from his future when he is travelling with a computer programmer named Mel. Answering a mysterious distress call from the space liner Hyperion III, they find that the passengers aboard include unscrupulous scientists, secret agents, saboteurs, thieves and a murderer. And lurking in the shadows are the Vervoids, the product of sinister botanical experiments, who will stop at nothing to destroy all non-plant life.
Director: Chris Clough
Writer: Jane Baker, Pip Baker
Producer: John Nathan-Turner
The Doctor
Mel Bush
The Valeyard
The Inquisitor
Professor Sarah Lasky
Commodore Travers
Rudge
Janet