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.

Prisoners are being beaten to death at El Toro Prison. Guard Larry Clark plans to go to the authorities, but before he can talk, a bomb rips through his house, killing him and his wife. Chase and August suspect that Warden Brinkman is involved in setting up to-the-death fights between the inmates. Determined to crack the case, August goes undercover in the prison, but his cover could be blown when it's learned that Robert Hatcher, his former partner, is being transfered to the prison.