Courtney reveals a rumor about Elizabeth at Julian's Party for Selita; the event shifts drastically as Chelsea and Tyson's arrival stuns everyone; an article about Elizabeth's ex causes a stir, leaving the crew to ponder the fallout.

Courtney and Craig discuss the article and Craig's relationship with his girlfriend Charlotte. Meanwhile, Cass discovers Craig's messages to another girl, casting doubt on whether or not he's the changed man he says he is.

Excitement buzzes at Selita's fashion show, where Courtney receives a shocking text message from Cass about Craig. Chelsea meets one of Tyson's exes, stirring up chaos.

Craig learns of a scandalous rumor, making him question his friends loyalty; Chelsea, reeling from her breakdown, tries to reconcile with Tyson; Elizabeth and Frank incite a rivalry between Julian and Cass for the Mykonos marketing contract.

At the Mykonos & Bird Bakery launch, Courtney confronts Elizabeth; Craig, troubled by a rumored sexting scandal, confronts Courtney for not having his back; Chelsea struggles to gain her mother's approval for her relationship with Tyson.

Courtney's conflict with Elizabeth boils over; post-chaos, the group plans Trevor's Miami bachelor party and Victoria's BDSM-themed bachelorette; later, Chelsea and Tyson discuss the changes needed to save their relationship.

Pre-wedding fun has the girls enjoying Grand Cayman's opulence and the men loving Miami's vibrant nightlife; the fun doesn't last, however, as the girls get into a massive fight at dinner, bringing the festivities to a screeching halt.