故事发生在中俄边境，围绕两个男孩和一只小狗展开。中国男孩小满和他收留的流浪狗九月闹了矛盾，于是九月跨越界河，回到了曾经的俄罗斯小主人——孤儿尼古拉身边。小满思念九月心切，几次三番想要渡过界河带回九月。而当小满终于与尼古拉相遇，二人却被走私犯挟持，陷入险境。小满的父亲和勇敢的九月出手相救……小狗跨越冰河，拉近了小满和他父亲之间的距离，也连接了两个异国男孩之间的友谊。 The story takes place on the Sino-Russian border and unfolds around two boys and a dog. The Chinese boy Xiao Man and his dog September were in a conflict, so September crossed the glacier between China and Russia, returning to his former Russian master, the orphan Nikolas. Xiao Man missed September so much that for