An abandoned church near August's home explodes into a fireball, triggered by an illegal methamphetamine lab. The next morning, he and Chase confront a group of bikers while trying to arrest one of them, and the bikers' trailer erupts into flames. It was being used as a meth lab. It's apparent somebody wants the labs out of business. Determined to crack the case, the detectives team up with Annie Mason, a new forensics assistant at police headquarters. Annie is able to turn up a suspect, a dangerous biker called the Falcon, with a rapsheet a mile long. But when he checks out the man's file, August is shocked to recognize the Falcon as Robert Hatcher, his former partner.

While August recuperates from his injuries from the previous episode, Chase and D.E.A. agent Jack Lawson work together to rescue a mysterious accountant who has been working for Bobby Cole. The accountant, known simply as the Monk, is brought into police custody after a daring rescue by Chase and Lawson. But fearing for his life, the Monk refuses to talk. An F.B.I. agent, Shoenrock, has come to take the Monk into custody, but Chase believes that he'll be able to get the Monk to talk, but his and Lawson's plans are wrecked when the two discover that Shoenrock may not be who he claims to be.