Maxwell Black of West Pacific Exports hires the agency to investigate rumors that one of his employees is on the take-specifically Frank Simpson, Claire's husband. Meanwhile, Kay Song presses Sam to find the traitor in the Red Dragon's ranks.

While visiting a village hospital sponsored by West Pacific Exports, Claire discovers that its malaria medicine is ineffective. As Sam tracks down those responsible for the drug tampering, Claire learns a harsh lesson in political realities.

When a newborn baby is left on the doorstep of the Cheng Detective Agency, Patricia and Sam try to figure out what they are to do with him. Patricia also receives a package containing Winston's fob watch, which was believed to be stolen when he was murdered. Meanwhile, Su Ling confronts her fear and desire over her relationship with Conrad, and Kang strikes a deal with the Devil.