Elizabeth Estensen, Fred Harris, Mark Dugdale
24th May 1980Liza Goddard, Michael Rodd, Stephen Cox
31st May 1980James Burke, Maggie Philbin, Pat Cater
7th June 1980Denise Coffey, Dr Garry Hunt, Toby Freeman
14th June 1980Paul Darrow, Lesley Judd, Robert Malos
21st June 1980Set on the planet Arg, three time travellers are put to the test by the Argonds. To win safe passage back home, they must use logic and lateral thinking.
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