A woman was killed by a truck wheel, which flew off while the vehicle was in motion. As the freight company which owns the truck becomes the target of the public and the media’s wrath, Tokuro Akamatsu, the president of the freight company, realizes that a structural defect within the truck itself may have been to blame. A conspiracy of the wheel manufacturer's attempts to cover up a defective product is uncovered.
The story is set in a world where a tokusatsu hero TV series "Outer Man" has gained national popularity for 50 years (just like the Ultraman series). One day, a giant alien looking exactly like Outer Man appears in Japan. The truth is soon revealed that, unlike the story in the TV series, Outer Man is an evil alien who has been trying to brainwash Japanese people to invade the earth. The actors who played the hero in the TV series decide to fight against the real Outer Man by transforming into the villain alien in the series, Sylvie Seijin.
Diez años han pasado desde que Akaza Ban Ban y los demás Dekarangers acabaran con las mayores amenazas que habían sufrido los habitantes de la Tierra. Las cosas ahora han cambiado mucho, con el héroe de rojo perteneciendo a un nuevo grupo, su "compañero" habiendo perdido algo de estilo, el chico pensante y la chica del baño de burbujas perdiendo algo de lugar, las muchacha EsPer ahora tomando el rol como una madre, y el chico de blanco y azul siendo el nuevo jefe. Todo en el medio de un crimen que casi ha tomado la vida de Doggie Krueger. Pero todo parece que podría aclararse por suerte, pero no será fácil la tarea de que se haga tras varios años justicia.
Kota Mizutani, a 10-year-old boy whose health worsened after he saw a murder, is brought to Akiko's clinic by his mother Mariko. Kota says that two months ago, he witnessed a man in a park strangling a woman with a cord and was chased by the man afterwards. Hamada, who listens to his story along with Akiko, immediately performs an investigation but cannot find any traces of the crime. However, Kota's testimony gains credence when the body of a woman killed two months before is discovered on a construction site in Kawagoe. Acting on a tip from a citizen who says she had been wearing the same clothes as the victim, the police search the house of Kazuko Shimazaki, a photographer who is often absent. But when Kazuko returns from her trip with her assistant Hirano, it becomes clear the victim is a different person.
