Hunter and McCall investigate the whereabouts of four million dollars still missing from a six-year-old drug bust. The missing millions implicate Hunter and his fellow cops involved in the bust, in "The Fourth Man."The only surviving felon from the case claims the cops stole four million. He makes the claim just as he is released on parole, but people involved in the case are being killed. Hunter is determined to find the culprit and finally exonerate himself.