After an accident lands a boxing champion in prison for five years, his pregnant wife has to give birth by herself. After his release, he learns that his wife has just passed away. To take care of his estranged daughter, he takes on a menial job at his former boxing gym but refuses to return to the ring. However, when his daughter is diagnosed with leukemia and has to undergo grueling chemotherapy, he determines to win the gold belt for The International Boxing Federation championship to encourage her to fight her cancer. At the age of 36, he manages to fight his way to the top 15 of the IBF ranking. But to win for the gold belt, he must fight to the very end, despite running out of energy and beaten to a bloody pulp...
