被关进神秘空间的永梦醒过来,在他的面前,接连出现而聚集的5个人,他们的共通点就是昔日已经死亡及消灭的假面骑士们。他们为何会在这出现及复活?难道说永梦也已经死亡了?设下这状况的是谁?为什么又会选中他们?接连出现的怪人们!阻碍脱离的陷阱以及陷阱!而且究极的超级英雄“假面战队五骑士”又是怎么一回事?谜一般的故事无法预料的展开……。In the 5th century, the Roman Empire was collapsing and barbarians threatened civilization. In Britain, a teenager named Patrick was living a comfortable life as the son of a government official. Despite being part of the Roman Catholic Church, his faith didn't mean anything to him until he was kidnapped by pirates at the age of 16 and enslaved at the edge of the known world - ...。