The beach's most controversial couple faces a reckoning they can't come back from; one couple pays a visit to the Boom Boom Room, another endures a birthday breakup of epic proportions, and one unlucky lady gets a second chance at love.

Ahead of the rose ceremony, tension between Aaron and Ivan escalates; after the roses have been handed out, the final guest host emerges; those still on the beach dance the night away at an '80s-themed prom.