The friends decide to take a long weekend in Cabo, but Reza and Asa refuse to go with GG, so the group must make a tough call. GG decides to make the best of being cut out of the vacation by digging in and taking over the launch party for her extensions line, hoping to prove to her sister that she has what it takes to be a real business woman. Lilly and MJ bristle at being forced together by the rest of the gang, and tempers flare when Asa blurts out loud what everyone in the group has been wondering.

The group finds a way to move on after the explosive fight at dinner the night before by kicking it on a mega yacht. GG scrambles to pull together her launch party at the last minute, while trying to fan the flames with her love interest Omid. After going out to get their Heyvoon Vasi on, Reza, Asa, and Mike begin to suspect that Lilly might not be as good a fit in the group as they originally thought and MJ begins to stumble her way back into their hearts.

After securing a major investor for "Diamond Water," Asa is finally able to purchase her diamond and create the first tank of her high energy gem infused water. Still exiled by everyone but MJ, GG questions if MJ is really her last friend standing, and spends a steamy day hanging with her crush Omid. Mike brings his girlfriend, Jessica, to his family's Shabbat dinner so that she can finally meet his parents, but wonders if she will pass the Persian Mom test, Reza brings Mike, MJ, and Asa to Great Neck for his family's Rosh Hashanah celebration and begins to consider forgiving his grandmother after gaining some insight into her difficult past.