In the 1980s, Lin Jianjun, a temporary worker at a state-owned factory, refuses to settle for a secure but ordinary life. He boldly quits his iron rice bowl job to set up a street stall repairing home appliances. Despite possessing exceptional repair skills, he is repeatedly suppressed by Section Chief Wang of the state-owned repair station, who cuts off his parts supply and maliciously frames him, accusing him of tax evasion. Teaming up with his honest, down-to-earth friend Wang Hao and his intellectual confidante Zhao Xiaoya, Lin overcomes one crisis after another with his outstanding technical expertise. He makes a name for himself by repairing imported VCRs, industrial production lines, and sports broadcast equipment. After establishing supply channels for home appliances in the south, he expands from a roadside stall into a chain of appliance stores. Remaining committed to honest business practices, he foils every scheme devised by his enemies, finds lasting love, and helps his neighbors grow prosperous together.