After a freak accident caused Jake Sherman to switch bodies with his muscle-bound gym teacher, it seemed as if being pumped-up would be the coolest thing in the world. But it's annoying when everyone thinks you are all brawn and no brains. It looks like Jake has two choices: stay a muscle-head forever, or go back to being a 98-pound weakling. Yeah, right. THere has to be a way out-but will Jake find it before the dumbbell rings?