法国大革命时期，公民罗伯斯庇尔正在斩首法国贵族。当消息传到英国时，两位贵族罗德尼·费林爵士和达西·普埃勋爵主动帮助他们的法国同行。罗德尼爵士是一位伪装大师，成为“黑指甲”，法国秘密警察领导人卡门贝尔和比德的祸害。

Bo•韦斯特想洗清他不公正的名声，于是他和他的男仆辛普森一起加入了外籍军团。但他们被派往的堡垒里挤满了古怪的退伍军人，当地人也在酝酿麻烦。Bo不知道，他的爱人已伪装跟随他。

After a scientific experiment goes horribly wrong during a demonstration, a scientist finds himself trapped in an alternate reality that bears some similarities to our own, but also has some striking differences. In this other reality the Second World War had never occurred, mankind had not yet traveled into Space and Mt. Everest had not yet been conquered, just to name a few things. Also in this other reality he is no longer a scientist but rather a well known author. After a personal tragedy in this alternate world, he finds himself back in his own world and desperately trying to locate the woman he fell in love with in the other world. Little does she know, however, that her life depends on him finding her.