The film is adapted from the true experience of badminton king Lee Chong Wei, telling an inspirational and touching story of never giving up. Lee Chong Wei has loved badminton since he was a child, but his poor family background and his father's opposition made his dream of playing a luxury. Lee Chong Wei secretly practiced without his father's knowledge and was almost used by an underground casino, but his perseverance finally moved his father, and he began formal badminton training and was selected for the national team. However, the lucky days did not last long, and setbacks followed one after another. He was excluded by his teammates, lost the election, and suffered a broken heart. He also encountered strong opponents in international competitions and was defeated frequently. Li Zongwei, who was under heavy pressure, faced a powerful opponent and chose to start again...