All the couples return for one final session on the couch with the experts to look back at their journey through the experiment.

All twelve couples return for one final dinner party and the chance to put any unfinished business to rest.

The Final Vows see romance and heartbreak as the last couples choose whether or not to continue their relationship after the experiment.

The Final Vows see some of the romantic and heartbreaking moments of the experiment as the couples decide whether or not to continue their relationship after the experiment.

At the final dinner party, the infamous Honesty Boxes are delivered to the table for the last test of each couple's relationship.

The remaining couples have one last date to help decide if they want to stay together outside the experiment.

The remaining couples set off on homestays to experience what life would be like with their partners back in the outside world.

The final Commitment Ceremony will see which couples choose to stay in the experiment and prepare for Final Vows.

The second last Dinner Party. Cracks start to appear among even the strongest couples as the pressure of life after the experiment starts to hit home.

The infamous Boys' and Girls' Night brings unfinished business with the return of some familiar faces.

It's Partner Swap Week, where the couples swap partners to get another perspective on their relationship, but not everything goes to plan.

In the second last Commitment Ceremony, a favourite couple make a bombshell decision to leave the experiment.

Fallout from the Retreat dominates the Dinner Party back at MAFS HQ.

The Retreat continues with unresolved grievances surfacing at the Boys and Girls' Nights.

All the remaining couples leave town for a week away together at the now famous Retreat.

During the commitment ceremony, a high-profile couple leave the experiment and another participant walks out in shocking circumstances.

Dinner Party. A new scandal hits the experiment with two husbands in the firing line.

Meet the parents week continues with a frosty catch-up between the in-laws of one couple.

It's meet the parents week for the original couples, with one bride dropping a bombshell confession; the new couples move into their apartments.

Commitment Ceremony. One high-profile couple leave the experiment, while one bride has a lot of explaining to do.

The new couples walk into their first dinner party and are confronted by a room deeply divided by the week's revelations.

Fallout from the reception bombshell sends shock waves through the group.

Two new couples walk down the aisle and one reception is rocked by a shocking admission.

At the Commitment Ceremony, the experts do something they've never done before in the history of the experiment after some troubling revelations from the couples' couch.

The rumour mill goes into overdrive at the second Dinner Party as gossip spreads about one groom spotted with a mysterious woman.

Alessandra's Intimacy Week continues with some surprising results.

Intimacy Week. Alessandra's intimacy exercises have some couples blushing, others thriving and some really struggling.

It's the first Commitment Ceremony of the season. Love is blooming for some couples, but a couple of grooms find themselves called out by the experts for unacceptable behaviour.

Confessions Week continues bringing some couples together and testing the bond of others.

The couples enter Confessions Week with the reappearance of the notorious photo ranking challenge.

The first Dinner Party of the season. All the brides and grooms meet each other for the first time with some explosive results.

The final two couples walk down the aisle and not everyone gets what they were expecting.

Drama hits the experiment as the Honesty Box is produced on the honeymoons with unexpected consequences.

The weddings continue as two more couples put it all on the line to meet and marry at first sight.

Australia's most controversial social experiment continues with two more weddings; one couple find trouble in paradise.

Australia's most controversial social experiment is back as 20 hopeful singles look for love by meeting and marrying a stranger at first sight. This episode includes the bucks and hens, and the first two weddings.