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The TARDIS arrives on the planet Terra Alpha, where the Seventh Doctor and Ace discover a society in which sadness is against the law - a law enforced zealously by the brightly uniformed Happiness Patrol. The planet is ruled by Helen A with the aid of her companion, Joseph C, and her carnivorous pet Stigorax, Fifi.
Length 75 minutes
Sylvester McCoy | Sophie Aldred | Sheila Hancock | Ronald Fraser | Georgina Hale | Harold Innocent | Lesley Dunlop | Rachel Bell | Jonathan Burn | Tim Barker | David John Pope | John Normington | Richard D. Sharp | Tim Scott | Mary Healey | Steve Swinscoe | Mark Carroll