In 1986, Shen Zhendong, a highly skilled technician, dies tragically in a test-run accident at the workshop. Carrying the memories of his previous life, he is reborn on the day of his engagement banquet. When his fiancée, Wu Liping, joins forces with Xu Wenbin to steal his precious recommendation slot for team leader, he flips the table on the spot and calls off the engagement, determined never to repeat the mistakes of his past life. He gets his betrothal gifts back, resolutely leaves the state-owned factory, rents a humble repair shop, and starts his own business specializing in hard-to-find parts for old vehicles. Along the way, he battles scheming businessmen and withstands crises involving raw material shortages, defective products requiring rework, and dishonest customers. With his exceptional technical skills and unwavering commitment to integrity, he builds his business from a small workshop into an auto parts factory, completely rewriting his tragic fate.