Extinction
Masato was simply born to be the Zeorymer pilot...or was he? Now all secrets are revealed, and no one is quite sure who is behind the plot, which will either lead to world domination or absolute extinction. As Masato fights to regain his old personality, Yuratei sends the last of the Hakkeshu pilots to destroy him and Zeorymer once and for all. As both sides meet for the final showdown, the world teeters on the knife-edge of nuclear destruction, and the true face of the Hades Project is discovered at last!
Aired 21/02/1990EP 4 - Extinction
Hades Project Zeorymer
A young man named Akitsu Masato is captured by a secret govt. project known as "Last Guardian". He is told that his life as a normal student was all a lie, and that his real destiny is to be the pilot of a great robot called "Zeorymer of the Heavens". The truth of this is hammered in when Masato sees his parents accept payment for raising him. The Last Guardian is preparing for the resurrection of "Hau Dragon", an organization bent on world conquest. 15 years ago, Hau Dragon built 8 great robots. Each of the mecha represents a force of nature. However, before any of the robots could be used, their creater Kihara Masaki destroyed the robots except for the leader: Zeorymer. He took Zeorymer and an embryo to the government. The embryo became the boy Masato. Now, Hau Dragon has rebuilt the other 7 mecha and wants the 8th. It will be up to Masato and Himuro to pilot Zeorymer and fight against the Hau Dragon, but neither Masato or Himuro are all that they seem.
(Source: AniDB)