In the 1980s, Zhao Gang is a highly skilled technician. At his engagement banquet, he refuses to hand over his promotion opportunity to his scheming romantic rival and decisively calls off the engagement. After his rival steals his technical achievements and a major factory suppresses and ostracizes him, he resolutely gives up his secure factory job and starts from scratch with a small repair stall. With his exceptional craftsmanship, he overcomes one challenge after another, breaks through countless obstacles, gradually secures foreign trade orders, and establishes his own processing factory. Refusing to compromise with injustice or rely on personal connections to get ahead, he turns his fortunes around through hard work. While remaining true to himself, he also finds a beautiful love with someone who truly appreciates him.