Australia's most controversial social experiment is back. Can singles meeting & marrying at first sight find their happily ever after? Tonight Bucks & Hens and then love & drama at the first two weddings.

Weddings week on MAFS. Three more couples tie the knot.

Weddings week on MAFS. Two more couples walk down the aisle and the Honesty Box sparks fireworks at the first honeymoons.

Honeymoons. Love blooms for some couples while others struggle with personal revelations.

The final weddings deliver one of the experiment's most anticipated matches and a historic MAFS first.

The couples all meet for the first time at the first Dinner Party of the season.

The fall out from last night's Dinner Party hits the group and Confession Week begins.

With Coco and Sam's marriage on a knife's edge, Coco secretly reaches out to another member of the experiment for advice.

First Commitment Ceremony. The couples take to the couch for the first time to face the experts including new member – sexologist Alessandra Rampolla.

The couples are introduced to Intimacy Week – a series of challenges designed by new expert Alessandra to enhance intimacy & sexual compatibility.

Alessandra's Intimacy Week continues with some couples nailing the challenges while others struggle.

The second Dinner Party. Two of the experiment's biggest personalities face off across the table while two others look elsewhere for love.

Shock departures at the Commitment Ceremony see some favourites say goodbye.

A surprise day trip lands the brides and grooms in the middle of a MAFS first.

The shake up with the experiment continues with another twist.

A shock arrival at the Dinner Party stirs up the evening.

Life in the experiment proves too hard for one couple and another marriage hits the rocks.

The new couples move in and a sudden departure shocks the experiment.

Fallout continues from the virtual "Meet the Parents" event.

Bryce finds himself in the firing line again at the Dinner Party.

Bryce drops a bombshell at the Commitment Ceremony and Booka & Brett face a huge decision.

The couples leave their apartments for a dramatic week away as a group.

A controversial incident shatters the final night of the group's week away.

Fallout from the week away finds Bryce under attack at the Dinner Party. Patrick is forced to defend himself.

The final commitment ceremony. The remaining couples must decide whether to go to final vows or leave the experiment.

The Final Dates. The remaining couples have one more chance to spend time together before separating to consider their future.

Everyone is back for Boys & Girls' night. Sam has unfinished business with Bryce.

The final dinner party. The experts produce the Honesty Box for the final test of the couples' commitment before they take their final vows.

Final vows part one: the first couples decide whether or not to continue their relationships outside of the experiment in some of the most emotional vows ceremonies ever.

Final vows part two: The remaining couples decide whether or not to continue their relationships outside of the experiment in some of the most emotional vows ceremonies ever.