When an archeologist friend requests their help to excavate a top-secret historical site, the Fargos are intrigued. But they have no idea that their discoveries will set them on a hunt for a prize beyond all imagination. The clues point to the hidden tomb of Attila the Hun, who was reportedly buried with a vast fortune of gold, jewels, and plunder: a bounty that has never been found.

As they follow a trail throughout Europe, it leads them not to one tomb, but five. The Fargos also find themselves pitted against a thieving group of treasure hunters, a cunning Russian businessman, and a ruthless Hungarian who claims direct descent from Attila himself—and will stop at nothing to achieve his destiny…

法戈一行人接到考古學家友人的請託，幫忙挖掘一個列為最高機密的古蹟遺址。他們感到十分好奇，卻不知道這趟探險之旅會誘使他們踏上一趟尋找超乎想像寶物的旅程。各項線索指向匈奴王阿提拉的秘密陵寢，據說他的陪葬品有大量黃金、珠寶、掠奪物，至今仍無人找到這筆財寶。法戈一行人隨著小徑穿越歐洲，他們找到的卻不是一個陵墓，而是五個。而且他們還必須和一個寶藏獵人組成的強盜集團和一位狡詐的俄國商人，還有一個自稱是阿提拉後代且未達目的絕不罷休的冷血匈牙利人……