在这部绝世魔仆动作/奇幻/恐怖片中,在一九九九年圣诞节前夕，纽约一地下铁工程队伍发掘了一具八百年前凯尔特人的骸骨及一把古怪锁匙，考古学家嘉伦被委派去深入研究这次发现。这次发掘消息传到中东一所寺院，那里的战斗僧侣拣选了寺内最优秀的一个学生路加斯以迎战魔鬼。同时，魔仆正袭击嘉伦以徒夺取锁匙拯救其主人撒旦。路加斯及时救回嘉伦，赶走魔仆。此时，嘉伦赫然发现魔仆并不会死……
New York, Christmas Eve, 1999 - at the dawn of the new millennium - a subway construction crew unearths an eight hundred year old Celtic skeleton and a mysterious key. Archeologist Karen Goodleaf is called in to determine the meaning of the discovery. News of the discovery reaches a Middle East monastery where the warrior monks knowns as the Knights Templer - an ancient sect entrusted with protecting holy relics - choose their best pupil, Lukas (Dolph Lundgren) to face the diabolical threat. As Lukas races to New York, an evil Minion seizes Karen and uses its body like a parasite and host. Lukas arrives just in time to rescue Karen and despatch the Minion. The Minion takes hold of another host - revealing that it is immortal. As it cuts a path of destruction through the city, decimating a parking garage and leaving a trail of death, Karen realizes that the Minion can't be killed - but only delayed from finding a new host.
