罗伯特（马龙·白兰度 Marlon Brando 饰）是德国人，二战期间居住在印度，却难以完全置身事外。英国情报局官员萨达特上校逼迫凯恩伪装成一位重要的德国纳粹人物，尤其是盖世太保，以执行一项关键任务：将技术和重要物品安全运出德国。凯恩被安排登上前往日本的纳粹货运船，此次行动风险极大，因为敌人已在船上安置炸弹，打算在船落入敌手时引爆，与敌人同归于尽。凯恩必须在不暴露身份的前提下，找到既能引爆炸弹又不伤及人员的办法。而船长米勒一直对凯恩心存疑虑，要求他时刻在自己视线范围内，监视他的一举一动。 任务进行到关键时刻，两艘载有真正德国高级军官的船沉没，他们被从海上救上了这艘船。凯恩意识到自己的身份很快可能暴露，于是果断决定煽动船员造反。在船员们的协助下，他支援了英国军队，成功俘获了……

In 1941, the British Admiralty is worried about the large number of Allied ships being destroyed in the Pacific Ocean by a mysterious enemy vessel. Initially, British Admiral Russell suspects that a German submarine is the culprit. However, the few revealed pieces of the mystery puzzle rather point to a German Navy surface warship.The British don't know it yet but the enemy ship in question is the German Navy raider Atlantis commanded by Captain Reger.His success in sneaking upon unsuspecting enemy vessels is due in large part on Atlantis' ability to disguise itself in a benign, non-combatant, neutral ship.To achieve this ruse, the Atlantis uses props, camouflage, paint, fake foreign flags and even theatrical costumes for its crew to make itself appear something it's not.When Atlantis is close to its prey, it reveals its true identity and opens fire sinking the duped victim. Finally realizing the truth, British Admiral Russell decides to set traps in order to persuade Atlantis to ... Written by nufs68