Kikou Souseiki Dynaman Rejuvenate! Genius Brain Season 1 Episode 38 Airdate: October 22, 1983 Synopsis A Mechavolution Beast created by Zenobia's orders makes an old scientist young again, forcing Rei to protect him from their desires to access a weapon he developed. ← Female General Zenobia All episodes Hold it! The Egg of the Tailed-People →