A series of murders of high officials forces the Battle Fever squadron into action, increasing their arsenal as well as accept in new member Diane Martin.
Battle Fever and Egos continues to confront each other over the location of the Noto treasure, with the key remaining in the mind of their amnesiac benefactor.
The arrival of Diane's sister from America forces Miss America into her greatest crisis, where she ultimately must switch with another to save her team and her family.
When children vanish during a car race at a movie studio, Kyousuke, Maria and Keiko search for them while being manipulated by the illusions of an Egos Monster.