Ali Baba sets off in the Sultan's magnificent sailing ship to find his brother and his father. But the ship is wrecked on an island, where, to his surprise, Ali finds his brother Tahieb, with a tribe of four armed pygmies. Leaving the island in search of their father, the two boys run into some shipwrecked pirates on a raft, who try to take over the ship and turn the voyage into an exciting and amusing adventure…