In the coastal city of South Australia, undercurrents surge beneath the neon glow. Hot-blooded cop Zheng Yi witnessed his partner Zhang Mingzhi die shielding him. The corrupt police department even framed Zhang as a mole. With his faith shattered, Zheng Yi quit the force and took violent revenge on drug lord Qian Jiu. Just as he was about to kill his enemy, he found that Zhang Mingzhi was actually alive, having long been bought off by Qian Jiu and faked his death. The once life-and-death brothers now stand across an abyss of betrayal. Hunted by drug traffickers, abandoned by the police, and with their loved ones dead, the estranged pair are forced to put aside grievances, launch a solemn counterattack against darkness with their broken bodies, fulfill the final redemption of brotherhood with their lives, and tear apart the drug web shrouding the whole city.