Wayne turns Amy's bicycle into a super speed mountain bike. Amy goes on a bike ride through the woods, crashes, twists her ankle and finds refuge in a cave. Amy meets Bigfoot and she names him George after Curious George. He saves her and takes Amy to her house. Now the family must get him back along with his wife, a Yeti.

Wayne reluctantly has to make a toy bear more high tech after sharing his feelings at Jentech West. He makes the bear smart and while downloading data onto the bear's computer chip, a virus named Legion is also downloaded onto the chip. Now the bear is bent on taking over the world and the family now must stop the bear before he can wreak havoc.