Beginning with the sniper case on the Red Medal Night, flashbacks reveal a shocking plot spanning twenty years. Chemical plant explosions, sealed boxes at the bottom of rivers, memory black market transactions, nuclear power plant sacrificial rituals - each case is a tooth on the genetic chain. When Ling Xiao discovered that his DNA contained the neurotransmitters of seven deceased predecessors, and when the quantum chip in Su Jin's chest began to countdown to the human eradication plan, this anti-drug war had already transcended the binary opposition between justice and evil.
