Rudy Tabootie's a regular kid with a very special possession: a magical piece of chalk that lets him enter ChalkZone, a world beyond the chalkboard. In ChalkZone, anything that's ever been doodled and erased comes to life. If Rudy draws a horse, he's got himself a ride - but if he draws a monster, he's got a big problem. Luckily, with the help of his sidekick Snap and his best friend, Penny, Rudy's a pro at drawing his way out of trouble when they're on an adventure. And in ChalkZone, adventure takes on a whole new dimension.