Kim Hye-kyeong is a retired handball player who has been successfully coaching in the Japan Handball League. When the coach of South Korea's women's national team suddenly quits, she is asked to fill in, but is faced with an undisciplined squad of players. Hye-kyeong tries to improve the team by recruiting some of her old teammates, including two-time Olympic gold medalist Han Mi-sook. However, Hye-kyeong's aggressiveness causes friction amongst the players, and she is replaced by former men's handball star Ahn Seung-pil, though she decides to stay with the team as a player. Seung-pil introduces modern European training methods which brings him into conflict with the older players, and things get worse when they lose a game against a high school boys' team.