The Alliance return to Rock to persuade Lord Mantel to join the Alliance. Tekla shows him the fate of Planet Water from her solar system to convince him that the Alliance is for the best. Lord Matnel is still confident that the Battle Moons can defend his world. Tekla becomes upset, so Femur takes this opertunity to trick Tekla into helping steal the Battle moons away from Rock. The Beast Drones and Blokk discover that Planet Rock is finally helpless and the swoop in to attack. Graveheart, Tekla and Cryos follow Femur and Pelvis and make them turn the Battle Moons around to go back to Rock and save the day.