Buck

A powerful dog, half St. Bernard and half sheepdog, who is stolen from a California estate and sold as a sled dog in the Arctic. Buck gradually evolves from a pampered pet into a fierce, masterful animal, able to hold his own in the cruel, kill-or-be-killed world of the North. Though he loves his final master, John Thornton, he feels the wild calling him away from civilization and longs to reconnect with the primitive roots of his species.