With the energy of Atlantis in their clutches, Deathsaurus and the Breastforce head to the Dark Nebula aboard the Thunder Arrow in order to liberate the Emperor of Destruction's Planet-Destroying Fortress. On Earth, Star Saber has already deduced that this is the villain's plan, and dispatches the Brainmasters as an advance unit to chase down and stop the Decepticons from reaching the Dark Nebula. He contacts Greatshot in Sector Two, and requests that he join up with the Brainmasters aboard Galaxy Shuttle en route.