Orphaned siblings Tony and Tia believe they are from another world because of their supernatural powers. As they search to find their real home, they end up at Witch Mountain where the people want to use Tony's and Tia's powers for evil.
Two young orphans with supernatural powers are adopted by a powerful and ruthless millionaire who plans to hold them captive and use their psychic gifts for his own selfish purposes. The children make a daring escape and learn they are actually castaways from another world.