拳坛上所向披靡的“死神”周始因一次意外被判入狱五年，出狱后妻子离世，只剩女儿周自在等他。年幼的女儿被发现患上白血病，周始为完成女儿心愿，以36岁高龄重返擂台，与拳王展开IBF金腰带争夺战。即使体能消耗殆尽、头破血流、视线模糊、血肉飞溅，亦会继续打下去，直至分出胜负…

中國拳王周始，曾經在擂台上戰無不勝風光無限，一次意外招致入獄。出獄後的周始性情大變，為照顧幼女，決心放棄拳擊，和幼女周自在相依為命，不惜回到平淡的生活，被困於人生低谷。後來幼女被確診患上白血病，更給了周始致命一擊！無奈把女兒交託給一直痛恨他的外婆照顧。最終，周始為了鼓勵女兒戰勝病魔，他決心以36歲高齡拳手的身份返回拳擂，在拳擊路上親身鼓勵女兒面對打擊不要放棄。

Zhou Si ,een bokser ,werd wegens een ongeval veroordeeld tot vijf jaar gevangenisstraf. Na zijn vrijlating stierf zijn vrouw, waardoor alleen zijn dochter Zhou Zi op hem wachtte. De jonge dochter bleek leukemie te hebben en Zhou Shi keerde op 36-jarige leeftijd terug naar de ring om de wens van haar dochter te vervullen. Zelfs als de fysieke energie uitgeput is, het hoofd bloedt, het zicht wazig is en het vlees en bloed spat, zal het blijven vechten tot de overwinning of de nederlaag.

Zhou Si, who was so desperate in boxing, was sentenced to five years in prison for an accident. After his release, his wife died, leaving only his daughter Zhou Zi waiting for him. The young daughter was found to have leukemia, and Zhou Shi returned to the ring at the age of 36 to fulfill her daughter's wish. Even if the physical energy is exhausted, the head is bleeding, the vision is blurred, and the flesh and blood is splashed, it will continue to fight until the victory or defeat.

복싱계의 ‘신‘으로 불리우는 사나이 주초는 사고로 징역 5년을 선고 받고, 그 사이 임신한 아내는 홀로 새 생명을 맞이한다. 주초가 복역하는 사이 아내는 세상을 떠났고, 형기를 마치고 출소한 주초 앞에는 홀로 남겨진 딸이 그를 기다린다. 하나뿐인 소중한 가족인 딸의 소원을 들어주기 위해 36세의 나이로 다시 링에 오르고, 골드 벨트 쟁탈전을 벌이게 된다. 체력이 소진되고 머리가 깨지고 피가 흘러도 승부는 계속 되는데…