Lieutenant Diego, a government intelligence officer, a G-2, becomes a double agent to gain entry into the sinister world of the smugglers of firearms, jewelry, and opium.
Carding, the anti-Japanese guerrilla turned Huk rebel when his family's land is taken over by the greedy landlord while Maxie, the communist recruiter who assures Carding that only a communist can be a true Filipino; however it was Jesus, Carding's brother-in-law who shoots Carding in the arm foiling his attempt to escape the military.