Martha and Helen decide to enter Wagstaff City's Go Green Go-Cart race. They do some research and visit the junkyard to find what they need to built a solar-powered cart. T.D. and Alice also visit he junkyard because they are making a wind-powered cart. Ronald and Reginald win the race with their cart "powered by a goldfish" but later they fight and crash into a post revealing that it is a lawnmower! T.D. and Alice are the real winners and Junkyard...

The Wild Kratts team learns all about the relationships between predators and prey, the differences between carnivores and herbivores, and how animals adapt to their environments in two exciting Adventures on the African Savannah! After getting caught in between a grumpy rhino and an outraged elephant, Martin and Chris have a contest to determine which is stronger, elephant or rhino powers!

Fun ensues when Peg and Cat need to round up the missing members of their touring band in time for their big gig performing for 100 chickens, hit the mall to join the Zebra Guy dance contest, and hit some wrong notes when they get stuck in a spectacular instrument built from junk. Includes 7 rockin' stories!