Paulie and Lexi finally define the relationship but a trip to the Shack of Secrets threatens to tear their time in paradise apart. A new ex arrives to make an old ex jealous and crashes the party, literally.

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.