Plot Summary:In 1981, after the successful test of a submarine tracker device developed by the Swedish scientist Paul Mandell and sponsored by the US government through his representative Miller, his industry is totally burned and the laser device is stolen. Stig Larsson from the Swedish Secret Agency suspects of an inside job and brings the Swedish Marine Thomas Kallin to investigate Paul undercover as his driver. The naive Kallin is double-crossed but continues his investigation while Larsson finds the truth about the heist.
为了抵抗别国以潜水艇为单位的海域入侵,以曼德尔教授(丹尼斯·霍珀 Dennis Hopper 饰)为首的团队发明出了一种能够精确定位潜水艇位置的搜索设备,填补了行业内的空白,亦保护了祖国的领土安全。然而,就在这个节骨眼上,生产设备的工厂发生了爆炸,至关重要的激光部件下落不明,为了查明事件的真相,军情军的拉尔森长官派出了士兵道马斯,将他安插到了曼德尔教授的身边,成为了一名卧底。 种种迹象表明,曼德尔教授和这起人为破坏事件有着千丝万缕的关联,而随着调查的深入,道马斯发现自己的生命岌岌可危。曼德尔教授手下的研究院巴克斯特对道马斯的真实身份产生了怀疑,当道马斯彻底暴露之时,他发现,放弃他的不仅仅是曼德尔教授,竟然还有拉尔森。