特工伊森·亨特（汤姆·克鲁斯 饰）和他的IMF小组将开启迄今为止最危险的一次任务：追踪一种会危及全人类性命的新型武器，并阻止其落入坏人之手。与此同时，伊森曾对抗过的黑暗势力也正在卷土重来，整个世界的命运岌岌可危。面对神秘而强大的敌人，他不得不面对选择使命还是至爱的终极抉择。

Walker, an international assassin/hitman, is compromised during a mission. His handler sends him to a Reassignment Center at which Walker will be processed for a new identity. During his stay at the facility, a ruthless assault team storms the compound searching for someone their boss has lost. Walker begrudgingly fall…