Harvey becomes attracted to a fellow ""Deadhead,"" a mysterious woman who is the target of a murderous stalker; Joe is promoted to Lieutenant, but discovers that his new duties mostly involve paperwork; Nick injures his leg and makes life difficult for Nash and Cassidy, who are just trying to take care of him.

The episode was rated 9.38 from 24 votes.

Nash goes undercover as a hitman for a drug cartel. Nick's poker buddies plan a bank heist; Inger returns from Sweden with her mother; Evan gets his engagement ring back from Cassidy.

The episode was rated 9.38 from 24 votes.

Four robbers storm into a check-cashing outlet. They release tear gas grenades and rob the place. Nash, Joe, Harvey, and Evan respond to the silent alarm. Three robbers (who all turn out to be women) dump the cash into a getaway car (driven by another woman) and leave on foot. Harvey and Evan run into the getaway car, but let it go, not knowing that the robbers are women. Nash and Joe confront the fourth robber. Nash shoots him dead through the eye hole in his gas mask. The dead robber is Adrian Beltran; stolen is 100,000 dollars. The MO (modus operandi) is similar to a North Beach robbery crew from four years ago, who are now all in prison. Nash suspects Anthony Warrick, who ratted out the original crew. But Warrick retains heavy-duty lawyer Denise, and Warrick is clean with no connection to the dead man. While Harvey and Evan surveil Warrick, another robbery goes off. A trace of the tear gas grenades leads to Bunker Bob, but he only identifies the dead Adrian Beltran. A study of the

The episode was rated 9.39 from 23 votes.

Wearing his brother's uniform as a motorcycle cop and impersonating a police officer, a deranged man imagines and talks to his dead brother. Nash adjusts to his break-up with Caitlin; Nick fails his driving test; Cassidy asks Evan for help to move back into a Berkeley apartment.

The episode was rated 9.42 from 24 votes.

Lowlife Frankie Dwyer returns, this time importing Vietnamese women as sex slaves, as Caitlin goes undercover as the seller. Nash has a tooth ache and refers to Caitlin by his first wife's name. Joe is aggressively pursued by bodybuilder Spike; Evan bumps into Cassidy in his job as a parking lot attendant.

The episode was rated 9.42 from 24 votes.

A serial killer who picks up passengers in a cab and then murders them stalks the city; Cassidy struggles with whether she wants to continue to be a cop.

The episode was rated 9.43 from 23 votes.

Nash hunts for a vigilante who claims he's helping solve crimes by murdering deadly criminals, including a serial rapist; Nash's distant and eccentric cousin, who is also a cop, visits from Scotland.

The episode was rated 9.43 from 23 votes.

Nash goes up against a gang of ruthless techno-geeks who are designing robots to perform robberies. Joe mistakenly sells a painting containing the Declaration of Independence at this yard sale and realizes he must do anything to get it back.

The episode was rated 9.45 from 22 votes.

Nash begins to believe that a 17-year-old boy involved in the Southeast Asian drug trade may be his missing brother's son; Cassidy starts dating a plastic surgeon and considers getting breast implants.

The episode was rated 9.48 from 23 votes.

A famous mystery writer offers Joe $350,000 for ""Mr. Woody"", while he waits it out (hoping to get more money) meanwhile Harvey stumbles onto a robbery durring a Phil Lesh concert at the Fillmore pulled off by 2 women (Jill Ritchie & Vanessa Dorman)and all Nash and The SIU Team have to go on is that the getaway Harley has a unique design on the side. Finally getting the papers to send Betty Ann on her way, Joe presents them to Nash for his signiture, but before he can sign it and get her outta there, she uncovers that she's found some.....curious irregularites in the SIU files, and it seems that the SIU has a mole. and also Boz (Christian J. Meoli) and Antwon do some P.I. leg work for Nash and Joe to find who stole a demo tape from Dickie Lerner (Rickey Medlocke), a record producer, and it is Rachel's birthday. The last episode i remember seeing out in the west coast.

The episode was rated 9.50 from 22 votes.

A married woman is murdered by her lover and his wife. Evan is beaten up trying to free his girlfriend/hooker from the clutches of a pimp. Joe takes Evan in, but Evan attempts suicide. Boz Bishop asks for a promotion at the detective agency.

The episode was rated 9.52 from 23 votes.

A juror becomes a vigilante avenging murder victims. Caitlin and Joe go in on a donut business venture. Evan is arrested and calls Cassidy; Cassidy finds a new boyfriend.

The episode was rated 9.52 from 21 votes.

Cassidy finds an apartment, only to be mistaken for the previous renter who has stolen money from drug dealers. Lonely Joe carries on an online romance, but the other ""woman"" turns out to be Pepe. Evan bottoms out in his broken relationship with Cassidy

The episode was rated 9.54 from 24 votes.

Frankie Dwyer returns again, putting out a contract on Nash's life while smuggling heroin inside of tofu containers. Nash and Caitlin's relationship is strained; Inger sets up Nick with her mother Ulla; Evan is born again in a baptism.

The episode was rated 9.55 from 20 votes.

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.

The episode was rated 9.64 from 22 votes.