When a newly released prisoner misses two back-to-back parole meetings, the squad is called in to track him down after the suspect’s therapist expresses concerns over his mental state. Meanwhile, Sharon invites therapist Dr. Joe Bowman to the office to evaluate Rusty over a game of chess.

A year-end blowout sale becomes literal for a used-car lot after one of its owners is killed when a bomb explodes. While the squad tries to find who is responsible, Rusty dons a bullet-proof vest under the watchful eye of Lt. Chuck Cooper, an SIS (Special Investigation Section) supervisor, in an attempt to catch the person responsible for threatening his and Sharon’s life.