Forbidden to accompany Richie and Gloria on their picnic, Reggie plans revenge with an array of misch ievious pranks. With his security device, Richie sees Reggie's ultimate joke: an automated abominable snowman.
On the day Professor Keenbean is to be honored for his Constructo invention, the evil Destructor steals the remote-control box from the inventor and then hypnotizes him. Soon, the evil villain has the country frozen with his ransom demands.