 The Soviets have developed the MiG-31 - a fighter that flies at 6 times the speed of sound, is invulnerable to radar, and worst of all - has a lethally sophisticated weapons system that the pilot can control through thought impulses. As soon as the pilot detects a threat - either visually or on a scope - his thought impulses will direct a missile to that threat, without so much as pushing a button. Mass production of the MiG-31 will give the Russians a huge advantage. Vietnam veteran Mitchell Gant, a former USAF ace pilot, is smuggled into the USSR to infiltrate the Russian airbase at Bilyarsk, where the Firefox/MiG-31 is being finished, and STEAL THE FIREFOX! Gant manages to overpower Col. Voskov - the Russian test pilot - and steal the aircraft, just as the USSR s First Secretary arrives at the base. Now Gant will run the gauntlet of Russian defenses - land-based missiles, naval warships, and helicopters - and reach a refueling point from a US Navy submarine. But the Russians still have a trump card - a prototype MiG-31 - and they send it up in pursuit of Gant after he completes refueling! What follows is a harrowing, cat-and-mouse chase across the ice floes of the Arctic. Who will survive?