Several home heating oil delivery drivers have been robbed and murdered. Joe Serpe and Bob Healy, now partners in an oil company of their own, make sure their drivers are safe. But when Rusty Monaco, another ex-NYPD detective, becomes the killer's fourth victim, Serpe and Healy take matters into their own hands. In the course of their unofficial investigation they stumble upon a completely different set of crimes that lead both Serpe and Healy back onto the streets they protected as cops.