Dick Eklund (Christian Bale) was once a famous boxer, but he became addicted to drugs and became depressed. HBO came to shoot his documentary, faithfully recording his life. Dick placed his boxing dream on his younger brother Mickey Ward (Mark Wahlberg), and was willing to be his sparring partner, while his mother Alice (Melissa Leo) acted as his agent. Mickey was once a Golden Gloves player, but now he is just a construction worker, and he is training hard to make a comeback. One day, Mickey and Sharlene (Amy Adams) fell in love at first sight. With the help of ESPN, Mickey competed with a player who was 20 pounds heavier than him and lost miserably. In grief and helplessness, it was Sharlene who comforted him, and the two began to date. But his family was extremely opposed. At this time, Dick pretended to be a policeman to collect fees in order to raise money for Mickey and was arrested and imprisoned, and Mickey was also implicated. From then on, the brothers turned against each other, the family supported Dick, and Sharlene supported her brother. The situation remained at a stalemate until Mickey competed again...Christian Bale and Melissa Leo won the Oscars for Best Supporting Actor and Best Supporting Actress respectively for this film.