Jin He (played by Zhu Zhenmo) and Jin Zhe (played by Jin Kangyu) are brothers who escaped from North Korea with Li Yingchun (played by Song Seung-heon). Jin He abandoned his brother for survival, which made the latter who was detained in South Korea for many years hate him. After years of hard work, Jin He still could not get his brother's forgiveness. Jin He and Yingchun joined a gun smuggling gang in South Korea. They won the trust of the boss with their extraordinary abilities and were entrusted to bring the boss's nephew Zheng Taimin (played by Zhao Hanshan). Unexpectedly, Zheng Taimin, who seemed to be submissive, hated Jin He because he could not get the respect of his uncle. In a transaction, he framed him and imprisoned him. Yingchun, who wanted to avenge Jin He, was seriously injured and one leg was abolished. Three years later, Jin Zhe became a South Korean policeman, and he vowed to bring his brother's gang to justice; Zheng Taimin climbed up the ranks in the organization; and Jin He, who had just been released from prison, had nothing. He found Yingchun, who was living in poverty, and the two wanted to take back what belonged to them... This film is a remake of "A Better Tomorrow" directed by John Woo.