A bright young yeti finds something he thought didn't exist—a human. News of this “smallfoot” throws the simple yeti community into an uproar over what else might be out there in the big world beyond their snowy village. High up on a mountain peak surrounded by clouds, a secret Yeti society lives in peace and harmony. One day, a Yeti witnesses an airplane crash; Inside lies Smallfoot, a legendary creature that will rock the society to its core.