马成的喜悦

遥远的古代，曾经被人们称作"恶魔"的三剑侠（アクマイザー）：撒旦、伊尔与盖拉经过数千年的沉睡，终于开始幽幽醒来。凭借着来自人类精神世界Under World的魔力相助，被历代假面骑士消灭的怪人们相继复活，协助三剑侠实现自太古时代便图谋称霸大地的野心。三剑侠的邪恶计划即将完成， Fourze、Meteor、Wizard、OOO等八名假面骑士史无前例团结在一起，与庞大的怪人军团展开殊死对决……。What if a web cast, LIVE on Halloween, turned out to be a real life survival game? What if the people hunting them are a rogue military? What if all eyes from the around the world are tuned in, and with a short window of time, officials need to find out where this broadcast is taking place? With all of technology taken away from the the young adults to slow down any rescue team...。