Eleven-year-old Max Martin and his fellow scooter riders Oscar and Lily (and her pet Chameleon, Speck) are hot on the trail of a thief in a puzzling case: THe wheels thta vanished. Max saw a strange green bicycle whiz by him onto a bridge. But it never came out the other end!How could it have vanished?
The thief on the bicycle stole two very important things, and now it's up to Max, Oscar, and Lily to use thier clues, and thier scooters, to find them. It will take the best scooter skills they have, and a wild scooter rider, for the three friends to catcht he crook!