故事講述的是小男孩滴答一直和勤儉持家的媽媽相依為命，媽媽通過自己的奮斗獨立一個人帶大兒子，全部身心都傾注在兒子身上，對兒子百依百順。伴隨 成長，滴答開始對外面精彩的世界抱有強烈好奇，并且漸嫌棄樸素單調的媽媽。終于有一天，在與媽媽的一次沖突中，滴答憤然離家。在急忙尋找中，媽媽突然消失不見，滴答也被垃圾的一臺神秘冰箱吸入到另一個時空。驚慌而又傷心的滴答到處尋找不到媽媽，如夢初醒，最終發現了母愛的秘密。

         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.