To pay for his sins and the surgery of a new heart transplant, TAN Kai must put his boxing gloves back on one more time.

In the last boxing match before his retirement, TAN Kai accidentally beats his teammate WANG Yao to death. WANG's heart is donated to a young girl, LI Chuan. Guilt-ridden, TAN Kai decides to meet LI Chuan and they slowly develop a friendship. Suddenly LI Chuan's body is starting to reject WANG's donated heart and a new surgery is very expensive. To pay for his sins and the surgery, TAN Kai must put his boxing gloves back on one more time.—Fortissimo Films