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.

Turtle understandably doubts Johny Drama's hope Brooke Shields might dig him at their set while he plays her brother Little Rick. Now Mandy has dumped Chris, Vince is looking forward to her birthday party- the professionals abhor the press bringing that out, even Warner Bros fears that could make Aquaman appear a home-wrecker. Cameron offers them a private diner at his restaurant The Geisha House. Even after a good meeting with Mandy and the boys at Jerry's Deli, E advises against it, but is ignored. Sloan tells E the painting agent Ari Gold gave Vince, who was prepared to buy it as a gift for Mandy, is another fake; E questions Ari, who doesn't confess but still switches the copy with the real thing he gave his wife as anniversary present. Mandy is tickled-pink with the Nitsch.

When Vince misses a meeting because he was with Mandy, Eric and Ari start to worry Vince's love life is interfering with business. Turtle and Drama make a musical discovery when they recover Erik's stolen car.

Johnny and Turtle get a gold watch, paid by Vince from his Aquaman bundle, to welcome Saigon to Turtle's company; however they see Mandy with her ex-steady date Chris, so they make cellphone pictures as proof she's apparently cheating on the star. Ari finds his senior partner Terence McQuewick, who didn't attend in three years, chairs the staff meeting and bars him for arriving late; in private he says he's returning full-time, and denies Ari a contract extension as consolation. Ari panics and swears his assistant Lloyd to undying loyalty before sending him out to tell eights agents the code 'tsetse fly', but Lloyd phones Terence already knows, who indeed brands him as a traitor; Ari then invites colleagues to join him in a new agency, but only Lloyd follows him and they find all company privileges are cut off, stat. Sloan reassures E Mandy is probably not cheating. E tells Vince he never felt it was over with Chris, and indeed Mandy confirms she is not quite sure yet, so he breaks up and- wants out of the movie. A 'jealous pep-talk' from Lloyd gives drunk Ari the courage to face his wife, or not quite.

When Ari and E learn about each-others problems with Terence viz. Vince, both of which make the press, panic is total. Drama and Turtle give Vince the cold shoulder, hoping Saigon and his friends are their new meal-ticket. Even E considers taking a job as agent with Terence and moving in with his daughter Sloan. Vince refuses to reconsider bailing out on Aquaman and fires Ari and the entourage, yet turns up at Turtle's company birth party. Ari's successor Adam Davies tells Drama he's out with Vince. On Ari's advice, E still supports Vince who has scheduled a meeting with Cameron, whose enthusiasm pulls him over.

Aquaman 2 is lost for good. Vince now volunteers to replace Zach Braff to be auctioned as dream-date for charity. Ari gets 12.5 million from Terence and sneakily starts spending it on upgrading his agency. Adam Davies gets wind of this and successfully demands a lucrative partnership. Eric's worrying about waking up spooned with the other trio girl makes it into a problem.

Vince may still get a break now that the studio is launching Queens Boulevard commercially, but he agrees with the director their re-cut is artistic murder. Johnny has an Edward Burns pilot audition, but throws a ridiculous tantrum, during which his car is stolen, so he isn't even on time. Now Terrance has signed Ari's settlement, he sets up his agency. As soon as Terrance finds out about the agency, he decides vindictively to stop payments and litigate regardless of cost. Just when people discover they won't be paid, probably for months, Terrance's ex offers Ari a way out.

Suspicions arise when Terence wants to sell Ari his share of Ari's old agency. Drama goes on an audition for the new "Melrose Place." Eric goes to the doctor after receiving some disturbing news.

Vince prepares to film in Italy. Eric's luncheon date with Sloan doesn't go as planned. Drama considers leaving the business, and Turtle tries to win back Jamie-Lynn Sigler. Ari and his wife debate on whether or not to buy his old company.

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.

(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.