After receiving word about The Great Games, Stinky, Claudette, and Runt decide to form a team to compete as well. However, Kate is out of town, so Humphrey becomes their coach. Will the Western team succeed, or fail?

Forced to relocate their den, Kate, Humphrey, and the pups befriend Amy, a dinosaur, who needs to stop a digging before a T-Rex's spirit emerges, just like hers did. Now, they will have to work together before it's too late.