The kids take a field trip to Ruby Mountain. Ranger Lily takes them on a hike, after she leaves they meet up with Mr. Squash who teaches them square dancing. Mr. Squash is very big and hairy. Eddie suspects that Mr. Squash is really bigfoot (especially after Eddie notices Mr. Squash’s huge feet and yellow teeth!) The kids go back to Ruby Mountain and try to take bigfoot’s picture, but all they end up with is a picture of Liza’s foot!