With the car packed and the Tabooties prepared to leave town, suddenly Rudy goes missing; Rudy, an avid doodler, discovers a magic chalk-based realm behind his classroom blackboard.

Snap gets a voice-activated car; Penny's scientific formula is stolen; a futuristic robot captures Rudy, Penny and Snap.

Hair-sucking Wiggies attack Rudy and Penny; a storm threatens Queen Rapsheeba's theatre performance; Snap gets a moustache.

Rudy, Penny and Snap are chased by BiClops; Rudy and Snap go on a river adventure; Rudy hides a vacuum cleaner in ChalkZone.

Snap poses as an exchange student; giant feet threaten to ruin the square dance; Rudy discovers an entrance to the Coliseum.

Skrawl is out to destroy Rudy; protesters picket Pieday; Rudy builds a hamster maze for the science fair.