二战期间，美国一潜艇接到密令，立即出航。离港二十四小时后才知道目的地是日本东京湾。经过艰难险阻，终于到达东京湾。返航时炸毁了日军航空母舰及巡洋舰，圆满地完成了密航任务……

The impressive title work is the viewer's first clue that producer William Alland and director Eugene Lourie squeezed considerable artistry and style from a shoestring budget. Look past the economic limitations; the suspenseful and imaginative story involves the death of a humanitarian genius whose father (a famous surgeon) and brother (a robotics expert) team up to keep the genius' brain alive in a robot body (well designed by ace effects artist John P. Fulton). The film's message concerns the nature of the soul and the role which physical sensations play in making humans act humane. Other affects by Fulton include one of sci-fi cinema's best death rays. All in all, a moving and intelligent movie