Frank and Joe are the most promising contestants in the annual Junior Bike Race in Bayport, but when Frank accidentally runs over a nail a blows a tire, his bike disappears and everyone becomes a suspect.
Houndsley likes canoeing and his friend Catina likes bicycling, but each has to help the other learn to enjoy these activities in order to do them together.
Sixth graders Dez and Jax are Sky Watchers who patrol the sky with their sky bikes and protect their schoolmates from spinners, little flat disks that steal bikes and take them to the ground below.
Dominic goes to the bike shop where he sees lots of different bicycles and watches as store owner Mr. Jensen assembles his new bike. Presented in English and Spanish.