影片根据真实故事改编，主要讲述东某镇民房里住着一户生活窘迫的人家，母亲因病去世后，父亲又在一次矿难中遭遇终身瘫痪，于是家庭的重担全部都落到了5岁孩子孙家宝的身上，而孙家宝用快乐健康的精神熔化艰辛苦难生活的故事。
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