Familiar nuclear leak leads to monster mutants done to a novel (though extremely low-budget) turn: after a school bus passes through radioactive fog, the kiddies inside assume the ability to incinerate whoever they hug. They also assume a certain zombie-like demeanor and sport black fingernails. None of this is noted by their uncaring and less-than-observant parents, many of whom are enticed into a very warm hug. This may be intended as social satire. Not only are the little microwaves extremely dangerous, the only way to kill them is to chop off their hands, leading to a wild limbless finale.