芒咕是动物城里负责给居民们送洗衣物的驴子。动物城的老国王狮子因为年迈打算退位，狐狸说服国王发起一场选举活动，在狐狸的安排下，成天爱做白日梦的芒咕竟然当选新的国王。

　　The film is said to be based on the emotional bonding between a boy and a dog and their love and affection for each other.