The remaining four couples - Vienna and Kasey, Michelle and Graham, Ella and Kirk and Holly and Michael - are summoned to Las Vegas to compete in the most daring competition in Bachelor Pad history. They will have 24 hours to master a terrifying Cirque du Soleil routine that takes professionals six months to learn. Bachelor alumni Trista Sutter, Jason Mesnick and Ali Fedotowsky will judge the couples' acrobatic expertise, eliminating one pair. The winning couple will choose who will join them to compete in the finale. Then, the two remaining couples will be joined by all of their past housemates, who will return to vote on which couple deserves the $250,000. Viewers also will be introduced to the new Bachelor, as Chris Harrison interviews the next man to look for love when the hit romance reality series continues next January.