An American actor in England tries to find love and work.

Sir Paul Berowne - a prominent Government Minister - turns to his old friend Adam Dalgleish following a series of threatening letters delivered to his London home. The minister's wife is in an adulterous affair with a prominent surgeon and she makes no secret of it. Berowne's only daughter is involved in left-wing politics and rejects her conservative father. Adding to his woes, his own mother favoured her son who was killed in an IRA terrorist ambush over Paul. The informal investigation has barely began when Dalgliesh is faced with a series of bizarre deaths that turn the case into an urgent assignment. —DumbeBlonde

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.

After the TARDIS collides with a spacecraft delivering human tributes to the evil bull-like Nimon, the Doctor and Romana must stop the fearsome alien's quest to rule the galaxy.