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.

Mike embarks on a mission to break it to his Persian Jewish parents that Italian Catholic Jessica is "the one." Reza finally decides to get serious about his relationship with Adam and tell him he loves him. Lilly is brokenhearted and back to square one after deciding to break up with Ali. . .this time for good. Asa makes her public performance debut as the headliner in the Persian pop music festival she created -- Persh-a-Pelooza.