Max the Glow Train, Blazin' Bill the Monster Truck, Pete the Truck and You, the viewer, go to the amusement park to ride different rides. At the Amusement Park they meet their friend Robo-J5 the Robot and O5 the Robot, called Bubble. Bubble does not know any numbers, shapes, or colors. The toys and Robo-J5 teach him numbers, shapes and colors and enjoy lots of different rides.