In a parallel universe lies Colorus, a small square planet populated by several hundred Coloblancs, disoriented cubic white robots looking for landmarks. One day, a meteorite crashes into the ground and transforms four Coloblancs into Colorums, intelligent robots, each with a color and different mental, emotional and physical abilities. They will have to learn to collaborate to build an organized civilization. For this, the Colorums will set off to discover their planet and its mysteries, will question themselves and their origin, and will try to make their little comrades the Coloblancs evolve, while thwarting the plans of Darkus, the obscure rebel.