Recap episode of Seikaisuru Kado, also known as Episode 12.5.

An evil monkey, Specter, has escaped a circus, using a mind-controlling device which allows him to become smarter and have access to controlling the monkeys. Kakeru is called over by a professor in order to capture all the monkeys, including the one's who's controlling them: Specter.

The fearsome warrior Taishaku-ten rebelled against the world-ruling gods three hundred years ago and began his own oppressive reign. His dominion remained unchecked for years—until one day, the blind prophet Kuyou prophesied that warriors known as the Six Stars and a child of the vanished race called Ashura would defeat Taishaku-ten. Ashura, marked by his pointed ears and golden eyes; Yasha-ou, a robust warrior; and four other Stars prepare to challenge Taishaku-ten. In order to do so, they must journey across tarnished landscapes and battle monstrous demons that have plagued the land. But as the wheels of fate turn, Ashura and Yasha-ou must find the sixth Star before it is too late.

The Garadain Empire has exhausted the primary resources of their native planet, so they send different space expeditions to find a new world where to live. One of their main objectives is planet Earth. However, Zeku Alba, an alien scientist, decides to rebel against the imperial rule and flees towards the Earth, where he gathers a group of youngs gifted with the power of "psychogenesis", an ability that consists in creating solid matter from mental energy. The most gifted of the squadron is Isamu, a young orphan whose family was killed in the first attack of the Garadain Empire. He is able to generate the powerful robot Govarian, an armor with which he can battle the alien monsters and is able to regenerate thanks to the psychic energy of the pilot. Helped by two other robots created by his team-mates, Isamu, aboard the robot Govarian, defends the Earth in the long war against the alien invaders. (Source: Wikipedia)