Ken Izumi is a kid who can charge his powers from surrounding light sources and use them through a laser type gun.

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 g

The Gaira aliens, hidden in the Arctic, plan to conquer Earth. Captured and forced to work for the aliens, Dr. Yan creates the ultimate weapon, a transformable aerial robot called Groizer X. Entrusted to his daughter Rita, Groizer X escapes the clutches of the Gaira and lands in Japan, where pilot Jo Kaisaka meets a wounded Rita. Taking up the cont