Episode list

A publicity hungry psycho who videotapes his attacks on women focuses on Michelle (Kelly Hu).

Nash and company foil a jewelry heist ring posing as firemen. Nash hits a pedestrian and gets sued. But Caitlin has misplaced Nash's auto insurance bill, and he blames Caitlin.

Nick tells Nash he thinks his son, Bobby is back and following him. They think he's missing in action in Vietnam but Nash knows he's alive and is in the drug business in Southeast Asia. Nash sees someone following Nick but it's not his brother, he's too young but he does look like his brother in his youth. Someone pulls a gun on him so Nash intervenes. He learns the one with the gun works for a drug dealer who also operates in Southeast Asia. Nash finds the young man and talks to him learns that he is the son of Nash's brother. And that his father and the other drug dealer were partners till they had a falling out and his father was killed. He's trying to get him and Nash offers to help.

After following the turncoat DEA agent to Las Vegas, Nash goes undercover as "Teddy Malone" to flush out Jimmy Z. In the process, Nash summons Evan and Harvey to come to Vegas to help him catch Jimmy Z's henchman who escaped custody. Cassidy follows Evan and proposes to him to which he says "yes" and then proceeds to go undercover at outdoor lounge with Harvey where they spot the escaped henchman and chase him into the hotel kitchen.

Evan puts himself under suspicion after he takes $40,000 of drug money during a bust; Nash and the SIU take down a drug dealer. Nash and Joe guard a chimpanzee, while Jake Cage goes undercover as an animal extremist.

Nash and company, along with marginal cop Jake Cage, track down pushers of a deadly steroid which makes body builders go hyper-aggressive. Cassidy is haunted by the death of her friend from the auto accident.

Nash goes undercover to stop a high-end heist artist. Joe helps a restaurant critic who receives death threats; Evan is back in the SIU; Caitlin takes an administrative job within the department; and Harvey helps out a troubled 12-year-old boy.

Harvey's search for a deadly sniper leads him to suspect two teenage boys. Evan proposes marriage to Cassidy. Joe and Inger have a rat problem in Nash's house, causing a landlord/tenant dispute. Cassidy is involved in a deadly automobile accident; the emergency room surgeon tells Nash that Cassidy did not live through the surgery.

Nash and company, along with Jake Cage, catch three escaped convicts to save the SIU. Harvey has fathered a child with Anna; Evan cheats on Cassidy; Nash and Caitlin finally consummate their relationship.

Harvey's shot by death-metal rockers; Stacy and Nash meet Nick's long-lost love; Joe finds Evan and Cassidy in a compromising situation.