เรื่องย่อ…An unyielding courage, to live and let die. Kit FOK (starring Zhen Feng SUN) is the hottest underground boxer, with his unbeatable records. His great success thanks to the outstanding tutor – Debo (starring Ken LOW). After few years, the business of the boxing studio went bad. Kit FOK must win this battle against Sholin (starring Zi Ping ZHENG) who is well-known as “Killing Machine”, to keep this studio. After a bloody fight, Kit FOK is defeated and hurt badly. It was a set-up by Lok (starring Sam LEE) who was Debo’s follower ten years ago, and his reputation was much higher than Kit FOK’s ever made. He was arranged to fight with a Cambodian boxer after encouraged by Debo. He totally lost. Since then, he became drugs addicted with huge debts, and sentenced to jail for years. Throughout the years, he blamed everything on Debo’s fault. After released from jail, Lok pretends to buy the studio and wanted to kick Debo out. Lok thinks he could revenge Debo by losing the hottest boxer Kit …