Trapped on the Prehistoric Planet

Deciding that Mighty Orbots is too powerful for his agents to defeat, Umbra has his agent Metanllis, who has the power to control minds, lure them to the planet Evilon with a stolen defense satellite. There, its prehistoric monsters will surely destroy the robot heroes. Meanwhile, a giant meteor is flying toward Earth, which will be devastated with both the defense satellite and Mighty Orbots unable to stop it!