On a mysterious planet, there are green grasslands, dense jungles, and clear rivers. Planet lives a group of lovely balls, they live carefree life. Suddenly one day, a group of blue cubs came to this place. They destroyed the grasslands, cut down trees, and the living environment of ball was seriously damaged. Not only that, but the blue cubes also built factories and grabbed the balls and forced them to produce them in factories. For the behavior of the blue cubs, the balls began to rebel against the blue cubes, protect their homeland, and began their adventure...