The Plumbers' Helpers receive two calls from Plumber Research Satellite Delta orbiting Earth. The first, a distress call from Max; the second, a warning from Ben/Humungousaur to stay clear. Clearly something's amiss, and the Helpers fly up to the satellite to check it out. Max leaves a recorded warning for them to stay together as they try to rendezvous, but Ben - malicious, evil, and very possibly possessed - prowls the satellite, systematically dividing and conquering the Helpers one by one, keeping them from Max. In the struggle to bring their hero Ben down, they knock the satellite from its orbit, and a hard choice must be made.
—statmanjeff