The Altman brothers are thrilled to get a spectacular listing in Brentwood but the seller insists on having a security guard on the premises whenever they show the property. Josh Altman is horrified when his live-in girlfriend Heather co-lists a Malibu property with his nemesis, Josh Flagg. Meanwhile, Marcos invites Madison to Mexico to meet with developers at a luxury resort community where villas rent for up to $6,000 per night.