Drama freaks out when Vince returns from rehab and the gang decides to throw a huge party to celebrate. Elsewhere, E and Scott's new company is thriving and Drama clashes with his animated show's costar.
Vince tries to help out a fellow addict but things end badly. Ari decides to rekindle an old relationship. Turtle receives news from Carlos about his investment in Avion. Drama continues to clash with his "Johnny Goes Bananas" costar Andrew Dice Clay.
Ari continues his fling with former flame, Dana Gordon. After a bad session of couples therapy, Ari takes Dana out to Bobby Flay's restaurant to get back at his wife. Dana learns of Ari's real motives and storms out. Mrs. Gold then accuses Ari of cheating on her with Dana while they were still together, which Ari immediately denies.
Vince tries to make things right with journalist Sophia Lear. Ari gets a reality check about his divorce. Eric receives an over-the-top gift, and some unsettling news. Turtle meets with his East Coast partners on a new venture. Drama shows his solidarity.
Vince continues to woo Sophia. The DeLucas fall in love with a pricey restaurant space, forcing Turtle to pitch his investors for more money. Distraught over Sloan, Eric turns to Melinda (again). Ari connects with Vince and Drama's miner movie script.
(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.