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。
Trapped in a pocket universe, surviving Earths face annihilation by the Anti-Monitor. Time shatters, bringing past heroes to aid Justice League against the epitome of evil. Their sacrifice may lead to victory.
The Anti-Monitor (the Monitor's evil counterpart) is released in the DC Multiverse and begins to destroy the different Earths huo87.com that compose it. The Monitor attempts to recruit heroes from across the Multiverse, but is murdered.
