Thunderbird Five is attacked by an unknown enemy with uncanny powers. An unidentified object is tracked landing in the Gobi desert, but what' s the connection? Scott Tracy races to the scene in the incredible Thunderbird One, but he cannot begin to imagine the terrible danger he is about to encounter. Alone in the barren wilderness, he is possessed by a malevolent intelligence and assigned a fiendish mission – one which, if successful, will have the most terrifying consequences for the entire world. International Rescue are about to face their most astounding adventure yet!