The Neverending Story Episode 3, The Purple Buffalo Episode 3, The Purple Buffalo.

Streaming video - 1995

When Bastian arrives on the Grassy Plains of the Greenskin tribe, he finds out that the Purple Buffalo have disappeared along with his great warrior friend, Atreyu. On his mission to find them, Bastian is visited by the Great White Buffalo spirit whose message becomes clear when Bastian finds a strange Land Galleon floating on the Grassy Ocean. The vessel belongs to Xayide, who has used her evil sorcery to capture the Purple Buffalo, imprisoning them in a crystal sphere.