Modern mother and daughter Zhao Mingyue and Zhang Cuihua travel back in time to 1978 after a car accident. Daughter Zhao Mingyue possesses the body of the drowning girl Song Qing, single-mindedly wanting to rewrite her mother's tragic fate, prevent her from marrying the gambler Zhao Qiang, and escape the oppression of the Zhang family and the forced marriage of the wealthy Liu. The mother and daughter recognize each other in secret, join hands to seize the opportunities of the era, set up street stalls to start a business, bravely fight against bullies, break through prejudices and obstacles all the way, study hard for exams, and six years later partner up to found a communications technology company. Amid the wave of reform and opening up, they shoulder-to-shoulder pursue their careers and carve out their own wealthy lives.