Panthro invents flying video cameras which are suppose to record the events that take place on third-earth so they could create their own holographic time capsule. Mumm-Ra, in the hope of destroying the Thundercats once more, revives the great mechanical monsters which the Thundercats have destroyed in the past and has them attack. He revives the Mutant Warbot, Driller, Mechanosect, and theTechnopede.