The group take to the couch with Paul Brunson, Mel Schilling and Charlene Douglas to clear the air after the events of last night's dinner party.

The group reunite for the first time since the experiment ended, at a final dinner party, where they learn which marriages have flourished in the outside world.

As the vow renewals continue, an emotional groom questions if he will be enough for his partner outside of the experiment, and one couple's future hangs in the balance.

The remaining couples return home to prepare for their vow renewals, but one bride questions the strength of her husband's feelings.

It's the final dinner party before the remaining couples face their vow renewals. Some couples use it as an opportunity to celebrate how far they've come. However, one pair have to question whether their love can survive outside the experiment, while another clash over a case of double standards.

The couples separate for a final boys and girls night out, where they welcome back some old friends, but a shocking revelation sparks one of the most explosive showdowns in the experiment's history.

The remaining couples embark on their final dates, an opportunity for grand gestures and expressions of love.

At the final Commitment Ceremony, the stakes couldn't be higher as the remaining couples seek the experts' advice one last time.

Homestays continue, as the remaining couples return to their hometowns and reunite with friends and family. An emotional mum voices her concerns about her daughter's future, and another bride receives feedback from a friend which leaves her questioning her relationship. Also, one bride's family have doubts about her husband's commitment to their marriage.

Homestays get underway, giving the couples a glimpse of what life could be like outside of the experiment, and the opportunity to gain insight from loved ones. While there are warm welcomes for some, one couple's marriage is jeopardised by a meeting with some straight-talking friends. Also, a scandalous secret is revealed, threatening to blow another marriage apart.

The couples gather for their sixth dinner party, and while one groom can't wait to share his romantic realisation, others have less cause to celebrate.

While absence makes one groom's heart grow especially fonder, time apart reveals troubling fault lines in other marriages, testing one couple's relationship to the brink of destruction.

The group return from the retreat and head straight to the sofa for the latest Commitment Ceremony. Some couples reap the rewards from their time away, but for others turmoil continues to grow. Departures loom, and one emotional bride questions whether her marriage is beyond repair.

An unexpected arrival at the countryside retreat leads to a showdown. Also, as one marital breakdown continues to spiral, the group are caught in the crossfire at an explosive dinner party.

The couples head off to a countryside retreat, which proves a welcome romantic break for some, but a dramatic turning point for others as one bride is confronted over rumours about questionable behaviour.

The group face the experts at another emotionally charged Commitment Ceremony. One couple affirm their love, and a bride's behaviour is called out by the experts and the group.

At another dinner party, some couples share their positive progress, but one bride is left desperate for answers about her marriage. Also, when one couple's authenticity is questioned, tensions explode.

It's the much-anticipated 'Love/Hate Week', as the experts push the couples to reveal their biggest likes and dislikes about each other. While some bonds grow stronger and feelings are shared, emotions boil over when one groom reaches breaking point after hearing his wife's critiques.

The couples take some time apart as the group splits in two for separate days out. But the relaxation soon turns to drama when one groom confesses his true feelings about his bride, and the burden of a long-hidden secret causes an explosive clash for one pair.

It's Commitment Ceremony time, and while the cracks start to show for one couple, another pair finally make some much-needed progress. The experts force another couple to seriously consider the future of their marriage.

At the third dinner party, a new bride's arrival and honeymoon antics stir up emotional reactions in the group. Also, another bride is forced to come clean about the lack of spark in her relationship.

The final newlyweds embark on their honeymoons, and while one couple realise that physical intimacy doesn't always lead to a deeper connection, another pair are pushed to breaking point by one partner's constant need for reassurance. Also, a bride's family deliver stern words of warning to her badly behaved husband.

The final couple in the experiment say 'I do' and find an instant spark in a passionate ceremony. Meanwhile, in-laws visits continue, and one bride gets a grilling from a frustrated friend over her treatment of her husband.

Two more brave singles take a gamble on love at the altar, but will the new bride's high-speed approach prove too much for her laidback groom? Meanwhile, in-laws week continues.

The experiment hits the next phase, as friends and family visit the couples for in-laws week, providing a breakthrough for one couple in need of intervention

The second dinner party serves up romantic confessions for some, but one bride struggles to find the support and validation she's looking for from her husband, leaving her questioning her marriage

It's Experts Week, and the newlyweds face their first set of challenges specifically designed to strengthen and develop their marriages. Charlene's intimacy workshop spices things up for some of the new couples, while one bride's patience wears thin with her new groom

The inaugural Commitment Ceremony sees all nine couples meet the experts for the first time. For some, it's an opportunity to showcase their success, but two couples clash

As the newlyweds return from their honeymoons, all nine couples move in together and adjust to life in their marital homes, ahead of the first dinner party

Two more bold singles take the leap of faith, but a bride's pursuit for perfection could jeopardise her chances of finding love. Also, four more newly-weds jet off on glamorous honeymoon escapes, where one groom's negative nature threatens to ruin any chance of romance.

Two more pairs of singles take the leap of faith, and while there's an instant spark for one couple, another bride's horseback arrival sends her new in-laws reeling.

Another pair of singles walk down the aisle, but could a frosty first impression leave one bride out in the cold on her wedding night? And as the honeymoons continue, one couple's romance goes from strength to strength.

While one bride makes a showstopping entrance, another suffers a major wedding day wobble. Meanwhile, the first set of newlyweds jet off on their honeymoons.

The return of the experiment to see whether science can help people fall in love. The first two couples marry at first sight. While an unexpected surprise transforms one groom's big day, will another groom's impromptu musical outburst be a major turn-off for his bride?