An ex-military recluse, living in the mountains of France to escape a traumatic past, is hunted down by those whose lives he has destroyed.

When Police kicks open the doors of the elite underground fight club Knuckledust, they find seven levels of hell, filled with the dead bodies of countless fighters, assassins and goons. Only one man, beaten up to a pulp, is still breathing: Hard Eight.

极具音乐天赋的小提琴家Rose在作曲家父亲Richard死后继承了他的大宅子，Rose在宅子中发现了父亲所作的遗作中有一些神秘的符号，在她的助手Charles的协助下，Rose逐步破解了这些神秘符号，同时也牵扯出她和父亲身后隐藏的惊人秘密。

剧中将会描述当时究竟发生了甚么引致这事故，而且当年勇敢的众人是如何牺牲自己拯救处于灾难中的欧洲