Thirty years after Sputnik, the United States space program is mired in uncertainty, while the Russians, Europeans, Japanese and others sprint onward and upward.

London, 1963. Returning to the scenes of his first televised adventure, the Doctor and new companion Ace play a tricky game of bluff and deceit involving two rival Dalek factions, local soldiers, and the awesomely powerful Gallifreyan artefact, the Hand of Omega...