On the Aquaman set, Vince admits to his co-star Mandy he's still in love with her, which director Cameron hears trough their mikes and so does E, whose confidence is shocked by all his secrecy. Ari Gold, Vince's Jewish agent, is holding a bat mitzvah for his daughter Sarah; as usual he's frantic about his guests, such as his senior partner Terence McQuewick and his daughter Sloan, who is reputed to have an infallible eye for male acting talent and really digs Vince, so Ari fears Terence wants to 'steal Vince'. The boys carefully get fancy party dress at Vinces expense, except E who pays his own clothes and refuses to waste good money on labels like Armani; when he meets Sloan, he does dress up, making the others warn him he's setting himself up for another scorned crush. Drama and Turtle get stuck on an old peoples table and regret having eaten little before the party as they don't get to the yummy stuff having missed the synagogue service with appetizers, nor knew they had to order, so it's kosher vegetarian leftovers, till a waitress shows them the kids buffet, just what they wanted, but are startled to see 13 year-olds blowing weed. Mandy tells Vince she's not quite over him either and put her fiancé Chris on hold.

After a night on the town celebrating Vince's movie star status with the success of "Aquaman" and the unveiling of the new Aquaman theme park ride, the crew gets a surprise visit from Dom, a recently paroled childhood friend from Queens. Back in the day, Dom took a rap for Vince, so Vince is glad to help out his friend in any way he can. But Dom's brash ways quickly prove to be too much for Eric, Drama and Turtle. Unfortunately for them, Vince hires Dom as his new head of security, so it looks as if he will be around for a while. Meanwhile, Ari has his hands full trying to keep his daughter away from a teen star with bad intentions.

Facing a scheduling conflict, Vince, Eric and Ari must figure out how to keep the 'Aquaman' sequel afloat without upsetting the Oscar(R)-winning director of 'Medellin.' When Saigon's song finally blows up, Turtle requests a sit-down with Ari.

In his battle with Vince's agent-lover Amanda, who seems to overplay her hand for Arthur Gatoff's 'Bogota' movie, Ari uses the pardon on Yom Kippur and ex-alcoholic Nicky Rubinstein's family. Alas Ari's wife refuses to let him break Sabbath restrictions to help out Nicky. It gets the boys doubt if she sabotages it to keep him in California and counter Ari, so E gets Vince to turn to Ari themselves. Meanwhile Vince has taken the boys to the race track and bets on King's ransom, which loses them one. Yet Drama decided to buy the stallion, although no stud but infertile, and an unruly troublemaker on his hands. There are surprising consequences on both fronts.

Vince and the gang return from their Italian vacation. Billy is avoiding showing Eric and Vince the first cut of the movie. Drama volunteers his new condo for a welcome back party for Vince.

Capitalizing on a romance-related bet with E and Vince on who can score with the ladies first, Drama takes Turtle under his wing to the one place where love knows no boundaries: Craigslist.

Eric gets into a car accident with Anna Faris. After she gives him his number so he could call for her insurance, he tries to contact her, but finds out she gave him a wrong number. So, he uses a star map to look up her address and goes to her house to talk to her. When they meet, they get along well and Eric actually drives Anna to a meeting for a movie. Meanwhile, Turtle is desperate because the boys ran out of weed, and while getting new drugs, Turtle, accompanied by some girls, gets stopped by the police. Ari has an argument with Mrs. Ari, because she wants to return to her old TV-show The Young and the Restless (1973) for a guest-spot, but Ari is totally against it. Especially, after he finds out that his wife is about to kiss another guy.

A cash-strapped Vince searches high and low for any type of paying job. Ari and Adam Davies battle it out.

Facing a big decision about Vince's career, the boys head out of town to contemplate their next move. Lloyd must back Ari at a crucial time.

Vince is having problems with the director of "Smokejumpers." Eric finds out Seth Green could be the star of Charlie's pilot.

Vince has to get his license while promoting his new movie. Lloyd demands a promotion. Eric considers buying his own house.

Lloyd is sent to spy on Andrew Klein. Drama must prepare for a romantic scene on his show. Turtle gets a new wardrobe, courtesy of Jamie-Lynn, and Vince keeps himself occupied between projects.

Vince and Drama take on Tom Brady and Mark Wahlberg at a charity golf event. E gets an unexpected job offer. Ari is in trouble with Mrs. Ari.

Eric and Phil Yagota try to convince Drama to work on a sitcom. Turtle gains an unlikely partner in a new business venture. Ari and Barbara Miller clash over giving Lizzie a promotion.

Vince tries to get Sasha a role in his new movie to keep her from starring in an adult film. Turtle goes behind his boss' back to meet with Mark Cuban. Ari loses a business deal to Amanda Daniels.

Ari's surprise birthday for Mrs. Ari is undermined by work. The boys are worried about Vince's out-of-control behavior, Eric receives a business proposal from Terrance, and Turtle could lose the tequila business.

Drama tries to get Andrew Dice Clay back on his show; Vince does a Vanity Fair interview; Ari has an awkward meeting with Dana Gordon.

(Series Finale) After a first date, Vince pulls out all the stops for Sophia. Ari and Mrs. Ari take a step forward, and a step back, at therapy. Drama, Turtle and Vince try to convince Sloan to give Eric another chance.