Doctor Who: Terror of the Vervoids

Also known as Terror of the Vervoids, The Trial of a Time Lord: Terror of the Vervoids, Doctor Who: The Trial of a Time Lord, Parts Nine to Twelve

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.