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.还是老四看得明白，从头至尾都站在太子那边，每次朝会都极力为太子求情。他忠心、沉稳、上孝下悌，想来父皇看在眼中很是感到欣慰吧。等此间事了，老四便是一人之下万人之上的亲王，而他们则很有可能被贬为庶人。