In 2016, a sudden torrential downpour plunged a drainage pumping station into crisis. During emergency repairs, maintenance worker Chen Zhaoye accidentally suffered an electric shock. When he opened his eyes again, he had unexpectedly returned to 1994—the very year he was dismissed from the state-owned pump factory and his life hit rock bottom. In his previous life, an improperly approved inspection form had haunted him with lifelong regret. This time, facing threats, false accusations, and dismissal from his supervisor, Shao Weimin, he resolutely refuses to sign off on substandard equipment! With no job and no one to rely on, everyone is waiting to see him become a laughingstock.