A new ex arrives with a secret that scandalizes the whole house. One of the exes is voted off the beach. Couples (and former couples) face their worst nightmares when they are introduced to the Shack of Secrets.

Another one of Chris's exes arrives at the villa, Cory and Taylor take a trip to the Shack of Secrets, and Tor'i and Faith get closer despite his relationship Angela.

Two exes are unexpectedly booted from the villa, Angela uses Derrick to get revenge on Tor'i, and the newest ex to arrive immediately draws attention from Victoria and Skyler.

In a surprise twist, the exes find themselves with all the power. Derrick schemes and tries to manipulate the house. Two new exes arrive and one is more welcome than the other.

Luis receives devastating news about his relationship with Victoria in the Shack of Secrets, Alicia's surprise return sets off Cory, and one of Cameron's exes arrives.

The newest ex to arrive is quick to stir up drama with the housemates, and the Shack of Secrets makes Lexi question her newly rekindled relationship with Paulie.

Jasmine is tempted to bring a new man into the mix and kick someone else out; when Alicia rips into Cory, everyone gets pulled into the drama; relationships are on the line when the exes jeopardize their place in the house.

Cory and Taylor's relationship is pushed into the danger zone when Cory's lingering feelings for Alicia come to light; a comment triggers an explosive fight in the house; a new ex arrives and receives unexpected news.

The house is shocked when all the eliminated exes return. A game of Dare or Double Dare is innocent fun until Angela and Derrick do something that they shouldn't. The house regroups after the big fight.

A trip to the SOS threatens to break up a newly reunited couple. Chase's love triangle games finally come to a head. The singles must decide if they're leaving Hawaii with love or solo.