Tired of attending obedience school, Sparky the puppy finds adventure in Hawaii after chomping on the magic bone.

As the students at his school prepare for a talent show and class presentations about Hawaii, fourth-grader George tries hard to behave but his magic super burps keep getting him in trouble.

Fourth-grader George gets help from his friend Alex in trying to control the magic burps that take control and cause him to misbehave in funny ways, but when the class bully celebrates his birthday at a water park, anything can happen.

When fourth-grader George starts at a new school, he vows to become a model student instead of the class clown he has always been, but just as his plan is going really well, he is overtaken by a magic burp that turns him back into a mischief-maker.

George's magic burps threaten to ruin not only his team's chances of winning a class field day, but also his audition to be the fourth-grade sports reporter for his school's new closed-circuit television station.

When they hear that their teacher, Mr. G., is cutting off his ponytail and picking up a suit, the students jump to the wrong conclusion, until Katie finds out what is really happening when she turns into Mr. G.

As long-awaited fourth grade starts, Katie is overwhelmed when the magic wind causes her to switch twice--first into a new classmate and then into Mr. Starkey, the school band leader.