故事讲述的是小男孩滴答一直和勤俭持家的妈妈相依为命，妈妈通过自己的奋斗独立一个人带大儿子，全部身心都倾注在儿子身上，对儿子百依百顺。伴随 成长，滴答开始对外面精彩的世界抱有强烈好奇，并且渐嫌弃朴素单调的妈妈。终于有一天，在与妈妈的一次冲突中，滴答愤然离家。在急忙寻找中，妈妈突然消失不见，滴答也被垃圾的一台神秘冰箱吸入到另一个时空。惊慌而又伤心的滴答到处寻找不到妈妈，如梦初醒，最终发现了母爱的秘密。

         The story tells the story of the young boy Dida and his diligent and frugal mother depending on each other for survival. The mother raised the son alone through her own struggle. She put her heart and soul into her son. As he grew up, Dida began to have a strong curiosity about the wonderful word outside, and he gradually disliked his austere mother. One day, Dida went away from home in a conflict with her mother. In a hurried search, his mother suddenly disappeared and Dida was also sucked into another space by a mysterious refrigerator in the garbage dump. Panic and sad Dida can't find his mom everywhere. He finally waked up and discovered the secret of motherhood.