外太空神秘不可測，跌進那裡會是怎樣的一番景象呢？一艘太空船「奮進號」升空前做好一切檢查且蓄勢待發，升空後竟然頻生意外，最後總指揮基爾及船員的努力，終於安全著陸，但太空船卻又已經偏離航道...... A shuttle is launched into space to release a new satellite. When an explosion occurs the crew has to think of a way to get back to Earth without atmospheric pressure (max q) crushing the damaged shuttle.
