S1, E2: Four couples new to non-monogamy spend a month at a tropical resort, where they freely experiment with bringing a third love into their relationship. Cameras follow the couples 24/7 as they meet, mingle and date a whole host of singles, all of whom are experienced in polyamory. At the end of their time in paradise, the couples must make the ultimate decision -- whether they will commit to life as a "three," go home as they arrived or even decide they were never meant to be together and leave separately.