Detective Mike Turner hates corrupt cops. He' s back in LAPD s Internal Affairs, assigned to a special surveillance squad where he doggedly pursues a trio of uniformed thugs preying on those they've sworn to protect and serve.

Turner is a streetwise cop who follows their trail of death and senseless violence from the environs of Hollywood and the rural valleys north of Los Angeles to its bloody conclusion in the mountains of central California. Despite interference from the department and betrayal by those closest to him, Turner chases the heavily-armed renegades until the hunter becomes the hunted, and the investigation nearly costs him not only the career he loves, but his life.

In the midst of the chaos, Turner attempts to keep his personal life intact. Complications arise when he takes on the responsibility of caring for his neighbor, an elderly retired cop. And when his former lover returns, he finds himself attracted to another woman who has a myriad of reasons to hate and fear him.

The members of Turner's surveillance squad are a blend of talent and turmoil as they plot with him to track down their wayward brothers in blue. Despite their eccentricities, they are dedicated cops who know law and order can't survive if the LAPD s thin blue line is compromised.