The summer is coming to an end and the Barneys are getting ready for back to school. Tamra Barney shares that she wants her trouble marriage to Simon to work, fully aware that their kids are feeling the tension in the home.Gretchen Rossi is preparing for an upcoming trade show where she will debut her new make up line, Gretchen Christine Beaute. Gretchen shares that she is nervous about all the money she is spending on launching this business and decides she needs some professional career advice so she meets with Vicki Gunvalson. Vicki asks Gretchen if Slade has a job and is bringing in money. Then, Vicki asks how much money Jeff left her. An upset Gretchen quickly ends the meeting.Meanwhile, Lynne Curtin visits her mom to get some advice on her teen daughters, particularly her 16-year-old, Alexa. Lynne’s mom says that Lynne is just too nice and laid back with her girls, who need discipline. Later, Lynne and Alexa have an emotional argument and the relationship between mother and daughter continues to unravel. Alexis Bellino tells her husband, Jim, that she would like to throw a cooking party for the Housewives, admitting that the party is just an excuse to get Tamra and Gretchen in the same room and see is she can the ladies to finally be friends. But at the party, it's Gretchen and Lynne who end up in a heated argument over Gretchen's newfound concern over Alexa