Radopolis has a big problem: water bottles. Radsters are an active bunch, but their desire to stay hydrated has led to a huge bottle pile-up. Way Cool Arena has been turned into a bottle dump, and the beloved skate park is next! The kids and Slider must find a way to get rid of the heaps of empties and reduce future waste while making sure Radsters stay healthy. Can they prevent their rad cybersite from getting bottled up?