The Japanese Series

Many Transformer fans are wondering on the story of the japanese series. Thanks to the information provided to me by Tony R. Davis, I am now able to give a short idea of what the story is about. The series starts right after The Return of Optimus Prime, part 2, The Rebirth doesn't occcur.

First season: Headmasters
Pictures!!
Optimus Prime merges with Vector Sigma and Hot Rod takes command once again as Rodimus Convoy. Cerebros has left Cybertron milions of years ago and arrived on the planet Master. This planet is inhabitated with small robots. These robots have built themselves different kinds of vehicles, together with their vehicles they transform in much larger robots; the Headmasters. Cerebros leaves Master again and returns to Cybertron. Galvatron learns of Master and goes there. He allies the Destrons and takes them with him to Cybertron. The "good guys" also come from Master to Cybertron, they are called Cybertrons. During the season some other well known Transformers die. Ultra Magnus is killed by Sixshot and Blaster and Soundwave duel each other to their deaths. Blaster and Soundwave return again as Twincast and Soundblaster. The entire planet of Cybertron explodes, Vector Sigma is also destroyed. At the end of the series Fortress Maximus slices Megazarak (The Japanese name for Scorponok. "Scorponok" is the Japanese name for "Lord Zarak") in half.

Second season: Masterforce
Pictures!!
The battle goes back from Master to Earth. In this season the Pretenders, Powermasters and Junior Headmasters were introduced. Megazarak returns as Black Zarak and is no longer a Headmaster (but he looks the same, just the colors are different). Fortress Maximus becomes Grand Maximus with Cerebros having a pretender shell (Grand Maximus was for sale as a remake of Fortress Maximus in different colors). The robots of the Powermasters have special bracelets, these bracelets cannot be removed. At the end of the season these bracelets disappear as the creator (Devil Z) of those bracelets dies and the robots leave Earth.

Third season: Victory
Pictures!!
Introduction of the Micromasters, Brainmasters and Brestforce teams. The Destrons are led by Deathasaurus. God Ginrai ("Powermaster Optimus Prime")gives his command to Star Saber. Later God Ginrai returns in the series to save Star Saber from Deathasaurus and dies as result of it. But he is rebuilt (again) as Victory Leo. He can merge with Star Saber in the strongest Transformer ever: Victory Saber. At the end of the season Victory Leo manages to defeat the Destrons and their fortress.