A command error resulted in the death of two comrades. Chen Mo, a retired special soldier, infiltrates an international drug cartel with guilt on his back, struggling between his dual identities as a drug lord and an undercover agent. When the road of revenge uncovers a transnational black network, he must face his inner demons in the game of life and death, use the glimmer of light in the abyss to complete self-salvation, and rewrite the meaning of protection on the border.
