Professor David Garrett, a British scientist, meets Frank Melnicker, an old friend from behind the Iron Curtain, at an international chess tournament. They play a game of chess, and Garrett later sees Melnicker being whisked away by two men. Garrett then realizes that during their game Melnicker secretly revealed to him an address. Garrett visits the address and meets Maggie, whose business is selling information. Maggie informs him that Melnicker operates an escape route, and she insists on taking Garrett to Melnicker's place in Yorkshire. En route, they leap off a train to avoid two thugs and are aided by Wilkins, an eccentric who lives on a barge loaded with brandy and animals. Garrett is attacked later by a stranger who seemingly falls off a cliff during the ensuing struggle. A policeman then guides Garrett to his destination, a lonely cliff-top castle where he meets Marek, the head of the communist ring, who reveals his intention to make it appear as though Garrett voluntarily defected. Both Maggie and Melnicker appear to have been involved in the plot; but Maggie, who has fallen in love with Garrett, reappears and helps Garrett outwit Marek.

DVD-r is in English with switchable Spanish subtitles. Approx. 86 mins. See film sample for audio and video quality!