A shocking event puts three participants in a difficult position. As one pair opens up about their childhoods, another takes their bond to the next level.

As their dreamy vacation comes to an end, the couples have heart-to-hearts before returning to Charlotte and entering a new phase in their relationships.

Five newly minted pairs of fiancés arrive at a luxurious resort in Mexico, where things go swimmingly for some while others struggle to stay afloat.

The remaining couples weigh doubts and dreams as they decide whether to commit to their futures together — or walk away alone.

The fallout from an explosive revelation about a past relationship rocks two romances and a friendship, while another pair leaves the pods as fiancés.

The pods are now open! Singles try to make love connections through a wall, and a romantic revelation causes a stir in the women's quarters.

Cohabitation brings sweet surprises and intense challenges for the couples, while romantic interests from the past create problems in the present.

The reunion heats up as Nick and Vanessa Lachey revisit the drama from the pods to the present with this season's participants and special guests.

Poor communication puts two engagements at risk. A text from an old flame ignites drama right before a reunion bash with former podmates.

Cohabitation leads to tough conversations about cross-country moves, finances and living arrangements. A shocking discovery devastates a bride-to-be.

Happily ever afters or heartbreaking goodbyes? The couples decide as the experiment comes to a close in the company of friends and family.

This season's singles and married couples gather round and get real with Nick and Vanessa, dissecting everything from I do's to I don'ts.

As more couples head to the altar, some finish the day heartbroken while others — despite their doubts — take the plunge and say, "I do."

As the couples deepen their bonds with adventure, relaxation and future planning, a detailed list of grievances strains one rocky relationship.

Loved ones gather while the remaining couples prepare to become husbands and wives. Who will say "I do," and who will leave the experiment alone?

With the weddings around the corner, trust issues and cold feet cause turmoil. After an emotional dress fitting, a couple takes their love to new heights.

A whirlwind proposal leads to a moment of truth, a pivotal ask comes with unclear intentions, and a body image conversation forges a strong connection.

In Mexico, the couples continue taking steps toward the altar... and deal with some not-so-sexy symptoms. At cocktail hour, former flings reconnect.

The couples bid farewell to paradise, head back to reality, reconnect with family and reexamine a host of hot topics with fresh eyes.

Vanessa and Nick share a surprise with the group. Kelly and Kenny deal with distance, Jessica meets Mark's roommates, and Amber throws a party.

For one woman, the third shot at love might be the charm. Bartise and Nancy both feel torn between two different people. Two more couples get engaged.

The couples settle into real-life time together in Malibu and finally meet each other at a cocktail night, where old feelings cause a few new bumps.

This season's current and former couples sit down with Nick and Vanessa for an emotional conversation to clear the air and look back at their wild ride.

A conflicted participant faces the aftermath of a heartbreaking decision. One couple strengthens their connection; another aims to make things official.

Two singles discover they're into the same woman, leading one to seek reassurance. A smitten couple meets in person as a situationship nears its deadline.