Recognize the five fearsome gentlemen gracing this back cover? No? Well, back up and reacquaint yourself with Ultimate Muscle Volumes 1-21, my friend. I'll wait here...
All caught up? Good. In that case, the beatings Kid Muscle endured at the sundry appendages of Barrierfreeman, Comrade Turbinski, Mars, Kevin Mask and Hanzo are no doubt fresh in your memory, and even now they send a chill up your spine. (Okay, okay, the Kid never personally fought Comrade Turbinski. But still.)
Well, hold that fear in your mind, savor it, and now consider this: those historic brawls are as nothing compared to the deep-down body hurt about to be doled out by the ancient evil rising from the depths of the Pacific at this very moment. It's already got Meat, and he's gone all to pieces over it. And now it's coming for Kid Muscle... Oh, and Earth. It's totally got it in for Earth.
Story and art by Yudetamago.