Metallus launches his invasion of Ghost Planet with a huge robot fleet. He orders his robots to take over Space Ghost's lair and they burst in and take Jace, Jan, and Blip by surprise. They are able to escape and are chased by the robots until they use their invisobelts to escape detection. They contact Space Ghost and explain the situation.
Space Ghost races to the planet and is greeted by the robots. Space Ghost is able to destroy some of them, but there are too many. Metallus orders his fleet to surround Space Ghost. Space Ghost tells the kids and Blip to join him and he surrounds everyone with his force field. They break through the fleet and make it to the command center where they confront Metallus. Metallus tries to use a ship to get away but Space Ghost captures him.