Let's go to Wonder World! Gwen and Gabby are spending the day at an amusement park with their parents. There is so much to do! But when faced with the biggest, baddest rollercoaster of them all, Gwen loses her courage. Will Gwen be able to overcome her fears and take the ride of her life? Find out in this fun and exciting story about cotton candy, river rides and rollercoasters. It promises to be the ride of a lifetime!