The nervous brides and grooms head out on their hen and stag dos before the first couple is matched. How will Anna react when she learns her new husband's best man has forgotten the wedding rings?

The next matches are made. Vicky and Stefaan are similarly adventurous but differ when it comes to relationship experience. Elsewhere, Ray and Jonathan are instantly attracted to each other.

There's instant chemistry between Carmen and James when they meet at the altar. But things don't get off to as great a start for Christopher and Rose, who find they're not on the same level.

With the last of the weddings done, the couples head off to Fiji for their honeymoons. But it looks as if there could be trouble in paradise for a few of the newly-weds...

Uneasiness between Ray and Jonathan leads them to crash Carmen and James's date on the last day of the honeymoons. And the couples prepare to move in together as they head back to New Zealand.

It's been three days since the newly-weds moved in together. The experts are called in to help the couples who are struggling the most - will it be enough to keep them from calling it quits?

The pressure's on as the couples attend their first dinner party. Anna worries that Vicky will flirt with Jordan, Carmen digs for juicy details, and tensions between Ray and Christopher boil over.

At an emotional commitment ceremony, the couples get a chance to lay their feelings bare. Will anyone choose to leave the experiment for good?

While some couples head out on dates and grow closer, Ray and Jonathan spend time apart. Later, Jonathan receives shocking news. And Anna opens up to Jordan about her past.

After the events of the previous night, Jonathan weighs up his options. Later, the couples split into groups for a night on the town, where turbulent relationships lead to tears aplenty.

Allegations of cheating have sent shock waves through the group. How will it all play out during the second dinner party?

While some couples are flourishing, others are falling apart. Will anyone choose to leave the experiment during the second commitment ceremony?

As the experiment enters the home stretch, the participants head off for the home visits. Vicky worries about her father's opinion, while Jonathan's friends take a stand.

Anna wakes up to find news of her past has hit the media. And as everyone prepares for the final commitment ceremony, feelings of indecisiveness leave one participant wanting out.

The couples make their final decisions. After four weeks of spending every moment together, they return to their everyday lives to reflect on their futures. Who will commit? And who will walk away?

There are tears, tantrums and threats as the couples reunite for their last dinner party. While one former couple has good news to share, tensions resurface between others.

The participants meet with the experts for one last time, and the events of the previous night's chaotic dinner party have left everyone with a lot to talk about...