More than twenty years ago, an evil summoner committed "Great Summon". One third of human beings were killed, and devils and monsters invaded the Earth. One day, a painter, Tamura Fukutaro, moves into an apartment house called "Ashiaraiyashiki" and gets involved in the troubles of his non-human neighbors. It's the beginning of a severe battle among gods, devils and the ruler "The Central".

In a dark corner of the universe, intergalactic criminal Kain breaks out of prison and destroys the Galaxy Police Headquarters. Basking in the afterglow of the terror and destruction he has caused, Kain sets his sights toward a much bigger prize waiting on Earth. Meanwhile, Tenchi Masaki and his crew are watching some old home videos of his mother, Achika. As the film rolls, Achika slowly starts to vanish. While watching her fade away, Tenchi also begins to disappear. However, thanks to a device created by Washuu Hakubi, Tenchi is not gone for good. The gang soon learns about Kain and deduce that he must have done something to Achika, which has resulted in time being altered. To save himself and maintain the future, Tenchi travels with the girls back in time to protect his mother from her fate.

The main character, Gun, rides a customized Honda CB750F cafe racer and eventually evolves into a pro road racer.

After winning domestic preliminary round, Lisa, Lorna, and Soichi advance to ex-Driver world race competition held in Los Angeles as representative team from Japan. Like a bad omen, they encountered a reckless AI car the first night they arrived at Los Angeles. Although they successfully stopped the car, the local police department is not very happy about that and insists to examine their car overnight. However, the problem did not stop just there. The daughter of the United States team`s sponsor, Angela, has gone missing. Lorna realized that Angela was on the reckless AI car before. Soichi who guessed that Angel could be in danger then start looking for her. But Soichi got captured by a mysterious man, and he shocked to find Angela is also there. During the confinement inside a warehouse, Soichi finds out that apparently there is a connection between the series of incident and illegal gambling on the ex-Driver world race competition. Now Soichi must escape from the warehouse with Angela....