夏霞是一位单身母亲，也是物理研究所的高级研究员。多年来，她一直致力于研究能够回到过去的粒子技术。一天，当夏霞的研究即将取得成功时，她发现自己的儿子豆豆被神秘的绑匪崔虎绑架了。崔虎威胁豆豆的生命，要他交出粒子技术。夏夏为了救豆豆的命，冒险用未完成的粒子技术在一个小时50分钟前返回，这让事情变得更加复杂，崔虎的故事背后的故事也逐渐浮出水面。

Xia Xia is a single mother and also a senior researcher of the Institute of Physics. She has been committed to studying particle technology that can return to the past for many years. One day whenbaoshu8.com the research is about to succeed, Xia Xia found that her son Doudou was kidnapped by the mysterious kidnapper Cui Hu. Cui Hu threatened Doudou's life to hand over particle technology in summer. In order to save Doudou's life, Xia Xia ventured to use the unfinished particle technology to return an hour and 50 minutes ago, which made things more complicated, The story behind Cui Hu's story also gradually surfaced.