It’s 1945 and Hitler is dead. The remaining Nazi leadership is expected to surrender any day but not all Nazis are in agreement. When the guards of the castle turned POW prison, Castle Itter, flee their post, a group of French political prisoners are forced to defend themselves. Rumors of a rogue Nazi captain hellbent on maintaining the Third Reich threaten the lives of all the prisoners at Castle Itter. With the help of members of the German resistance, a small band of American soldiers, and one Sherman tank, Castle Itter makes its final stand in the final hour of WW2.
在清洁公司工作的日比野卡夫卡,因与日本防卫队的希望之星一青梅竹马的亚白米娜重逢,重燃曾经放弃的防卫队梦想。然而,就在此时,他却意外变身为拥有强大力量的“怪兽8号”。在后辈市川莱诺的帮助下,卡夫卡一边隐藏真实身份,一边参加防卫队选拔考试。然而,在生活似乎步入正轨时,一场由高智商怪兽发起的防卫队基地袭击事件,彻底打破了平静。