Germa is a gigantic Neo Hume mutant created by the Nazis. He has the ability to morph his body into any shape at will. Baron Gong is trying to help Hat Girl get revenge for her sister, who was devoured by the grotesque Germa. Baron Gong, Hat Girl and his chauffeur escape into the sewers, but Germa quickly morphs and has begun to pursue them. Can they make it out of the sewers alive?