Frankie and his fellow robots have been consigned to the Scrapheap - until a monster appears in their midst. It lives alone in a small hut on the edge of Scrapyard. Frankie sets out to confront the monster. Its name? The Doctor.
The TARDIS brings the Doctor, Jamie and Zoe to a sophisticated Earth colony. Olympos is a world of hi-tech cities, where the lives of the populace are controlled by an all-seeing, all-knowing super computer: Zeus.
Reports are coming in to UNIT of trains emerging from a railway tunnel in Sussex, their passengers dead. The Doctor elects to drive a train through the tunnel himself, but when he emerges Jo sees to her horror that he is covered in ice.
Responding to a salvage team's distress call, the Doctor and Leela arrive on a crippled space ship. The salvage team are long dead, but their last log entries speak of a specter stalking the ship's halls, picking them off one by one.
When the Doctor, Nyssa and Tegan arrive in 1980s London, they find the current hot ticket is The King of the Dead, an interactive theatre experience they've inadvertently become part of.
The Malgarians are known as a vicious, belligerent species - so when the TARDIS brings the Doctor and Peri to their home-world, they are puzzled to be greeted by a pacifistic population.
Materialising aboard the corvette HMS Thunder during the Second World War, the Doctor and Ace join Commander Fitzgerald and his crew as they track an allied submarine in trouble.
A lieutenant is sent to interrogate two strangers who were apprehended at a secure RAF base. The man seems strangely familiar, could pass for Lord Byron, and says he's an alien; meanwhile, his female friend is apparently from 1930.
Having escaped an ambush by pirates, the Doctor and Vicki are stranded on a strange world, in the shadow of vast rock formations and islands in the sky. The only way home is through the treacherous Etherlands.
The war world of Combatia. A great mechanized planet that traverses the universe, plucking up the finest warriors of every world it passes and pitting them against each other to determine which of them is greatest.
UNIT is called in when an alien escape pod brings a woman to the Kent countryside. The Doctor offers to repair her stricken, dimension-hopping ship, seeing an opportunity to escape his exile.
To dream of the Black Dog is to die in terror within the week. The Doctor thinks it nothing but mindless superstition - but then Leela dreams the dream.