 A school laboratory accident mixes one student s vitamin cereal mix with Dexter Riley s chemical experiment. When the kids decide to dispose of the mess to their neighbor s cow, they learn that the cereal gave the cow the super-strength to give a massively vast supply of milk. When they try it out on themselves, they discover that the stuff gives any human superhuman strength for a few minutes. The school sees this as the thing needed to save their school from closure, as the Dean makes a deal with his relative who owns the company that makes the cereal for financial support, unaware that it was Dexter s chemical which was solely responsible for the strength. When her competitor learn of this deal, he hires two criminals to stop it.