Dingo the mule grew up believing he was a horse. When Dingo's best friend told him he was not a horse, he had an identity crisis and ran away. He was tricked into a job he did not like but through that, he gained great strength, mentally and physically. He also met other mules. Finding others like himself gave Dingo a new, positive outlook on life...He was so happy. Finally, he could be his true self.