Electrician Liang Zhigang unexpectedly wins a huge grand prize. Facing the exploitation and bullying of his ex-wife and black-hearted boss, as well as the greedy demands of his brother and sister-in-law, he holds firm to his bottom line and original aspiration. He devotes himself to filial piety in caring for his sick mother, protects his daughter's growth, and leads fellow workers to form a plumbing and electrical team for self-reliant entrepreneurship. He also sincerely helps the kind and independent teacher Shen Yaqin, with the two understanding each other through adversity and mutually uplifting one another. The wicked finally reap what they sow, and Liang Zhigang establishes himself through hard work and diligence, guarding true affection with kindness and responsibility, writing an inspiring epic of self-reliance, self-improvement, and accumulating virtue to achieve greatness.