Leo is a little flying squirrel with a problem. As part of his family's acrobatic circustroupe traveling through the forest, Leo is expected to perform feats of daring onthe high wire. Only he is much smaller than his brothers and sisters, and one pawis abnormal, making it difficult for Leo to maintain his balance in the air. Afterhe ruins the final show of the season, in his shame and sadness, Leo decides torun away. Still, he secretly hopes that his family will come looking for him, notrealizing that he is lost far from home and winter is fast approaching.