Kid Muscle and his teammates have survived battles with some of the nastiest superpowered scum in the galaxy, but they're about to face their most terrifying opponents yet: Generation Ex. The Gen Ex wrestlers have superior power and all the moves, and they're hell-bent on forcing Kid Muscle and friends into early retirement. Who are they? The latest graduates from the Muscle League's own Hercules Factory! Now the New Generation heroes we've all grown to know and love must defeat newcomer Jaeger's Red Rain of Pain and the limber liquid powers of Hydrazoa...or be banished from Earth forever! Will the New Generation be tossed aside like yesterday's beef bowl? And will Kid Muscle care?