The Transformers

Earth has been invaded by extraterrestrial shapechanging robots which have made our planet their battleground. The struggle between the good Autobots and the evil Decepticons centers around energy as the objective is to collect four pieces of the Energon Cube and getting them back to the Autobot base. The Decepticons will do their best to get in the way and use the cubes to their own nefarious means.