Wonder Woman receives a distress call from a scientist at a research center that is under attack from a giant. Scorpio, a mutant who is half scorpion and half man due to a failed growth serum experiment, learns of Wonder Woman's presence and orders another attack from his bug army to steal the rest of the growth serum. Wonder Woman and The Flash goes after the bugs to save Robin while Batman and the scientist must create an antidote to return the bugs back to normal.