Dr. Steven Sorenson plans to tap the geothermal energy of the Earth's interior by means of a thermonuclear device detonated deep within the Earth. Despite dire warnings by fellow scientist Ted Rampian, Dr Sorenson proceeds with the experiment after secretly learning that he is terminally ill. This experiment causes a crack to form and grow within the earth's crust, which threatens to split the earth in two if it is not stopped in time.
苏联在1982年开发了米格31喷气机时，全世界大为惊恐，唯一对策只有盗取这架超性能之飞机，而有能力担任此任务的就只有越战空中英雄甘德，甘德终于被说服由退休生涯中复出，接受一连串的特种训练后，前往俄国并与俄国特务数次交手，展开一场惊心动魄的激烈空战……
