A manga comic book and anime television series by manga artist Go Nagai, made as a direct continuation of the successful Mazinger Z series. It was aired on Japan in 1974, immediately following the end of the first Mazinger series.

The evil Gigatron has led his forces of Destrongers to Earth, where they seek to pillage the planet for its vast energy resources in order to fuel their war against the Autobots. If successful, the Destrongers will finally be able to tip the scale of power in the war to their favor, eliminating the Autobots and moving on to conquer the universe. To this end, the Destrongers kidnap the scientist Dr. Ohnishi, Earth's leading scientist on energy and natural resources. Dr. Oonishi's son, Koji, is contacted by none other than Fire Convoy, who takes the boy on a mission to rescue his father. Although Fire Convoy and the other Autobots fight valiantly, they are unable to rescue the doctor from the Destrongers. Now it is up to the Autobots and Koji to rescue Dr. Oonishi and protect the Earth and its resources from Gigatron and his army.

The story follows the life of Retsuya and Gouki, two brothers with the same objective as Go and Retsu, to race and win championships! The two new brothers are faced with various traps set by an evil organization...together, along with other friends, they try to enjoy their races as much as possible, showing off their competitive spirit and taking down any kind of evil that might put the sport they love so much at risk!

Spoiled rich girl Yao Sakurakouji decides to join the Miami police force to enjoy car chases, gunfights and wanton destruction. The psychotic and not-too-bright Yao is partnered with Lu Amano, the soft-spoken and sharp-tongued daughter of the police chief. Together the dirty duo clean up the streets of Miami and take on a mysterious crime syndicate known only as 'The Organization'. (Source: ANN)