Heat At Major Oshira's request, Mac and Andy go undercover as two big-time gamblers to find a murderer.

Riley and Senkowski pursue a doubly difficult case when a known deranged killer is set free by the Court, then murdered by a vigilante in a series of attacks on other freed criminals.

While investigating sales of stolen Army weapons, Mac and Andy turn up the dog tags of Andy's brother, who was reportedly killed in Vietnam.