This movie starts with Saze X playing basketball. Suddenly, a lightning bolt hit the earth. They walked towards it and found a boy. The boy's name is Ricky, and he thinks he has forgotten everything. On the other hand, Remy told Sazer-X that a giant monster named Mechanical Giant Bulgario had approached Earth and was destroying buildings. Sazer X still defeated the monster. But then something flashed into their eyes, and Takuto mistook it for a cosmic capsule. In fact, this is the Bosquito people that exist within Bulgaria, which Professor Horiguchi later explained.
城主只有500名守军，小田正彦（西村雅彦饰演）知道很难抵抗，在逃到小田原市之前已经向加拿巴纳投降。后来，族长被人们称为“傀儡阿多”，他的堂兄长崎（野村万斋饰演）担任代理城主。调皮捣蛋的长卿对使者常熟正佳（平月达饰演）的傲慢言行感到不满，立即宣战。在Tanbo Masaki（佐藤宏饰）、Hokutsu Kisazaki（山口智美饰）、Kenobi久卷（Kokuei Cheng饰）等英雄以及全市军民的支持下，虚弱的Niigaki和丰臣氏展开了一场势均力敌的战斗。。。这部电影改编自编剧和田龙根据真实历史事件创作的同名小说。这是3月11日被迫推迟上映的时间最长的日本电影。
