Power Rangers S.P.D. Villains
The Troobian invaders and their commander, Emperor Gruumm, travel through galaxies, planet to planet taking any valuable resources for their own needs then destroys the planet, and now their next target is Earth. Commander Cruger's planet, Sirius, was taken over by these invaders. Emperor Gruumm now knows that Cruger is still alive and is on Earth. Gruumm will stop at nothing to destroy Earth. While his Battleship slowly makes it's way to Earth, Gruumm will try to eliminate Earth's Defenders - the Power Rangers, before the invasion begins.