An account of world-beating aircraft projects that were scrapped before their time. Each aircraft is recreated and shown using computer graphics. Includes archive footage and interviews. In the grip of a rapidly escalating Cold War America poured billions into developing a giant nuclear powered bomber, a plane so fantastic that it could stay aloft for months at a time. The Convair WS 125 was the ultimate doomsday machine... Recently declassified Russian Cold War era documents disclose they actually flew a prototype Atomic engined bomber.