The couples go on their final dates... will any cracks in their marriages be put under added pressure? Difficult decisions lie ahead and there's a crisis on the cards for one husband and wife.

It's the last dinner party for the couples. The honesty box game unveils some uncomfortable truths, and Thomas and Adrian make a shock announcement.

Two more couples put their trust in science. But will they make it down the aisle and marry at first sight?

It's time for the vow renewals and as one couple commit to spending their future together, the fate of two others hangs in the balance...

Stephanie and Benjamin are living together now and learning that the path to true love does not always run smoothly. And Harriet and Richard head to Lisbon for their honeymoon.

It's Love/Hate week for the couples. Can they improve their honesty and communication?

It's the last Commitment Ceremony, and while some relationships are solid, others are shaky. All of the participants must make the most improtant decision to date: agree to go to the Vow Renewal Ceremony, or call quits on their marriage.

The newlyweds head off on their honeymoons, sharing romantic activities in exotic locations. Will they fall in love? Or for one couple, will the football on TV get in the way?

It's the Couple's Retreat and as old feuds are reignited, a connection forms between a bride and groom... who aren't married to each other!

With final vows fast approaching, tensions rise as the most important decision awaits. Who will commit to a future together and who will walk away for good?

In this 90-minute special, four couples who met for the first time on their wedding day live together for four weeks as husband and wife. And then they must decide whether to stay together or split.

Two strangers meet and marry. Will the newlyweds grow to be a real couple over the next five weeks? Or will a quickie divorce be required?

All of the couples reunite for the final ever dinner party. The experts watch on as the honesty box sets off a disagreement that ends the evening with a bang.

The experts match Stephanie with Benjamin and Carrie and Wayne. Can the couples persuade friends and family that marrying a stranger isn't such a crazy idea? And will they actually like each other?

While Verity and Jack exchange wedding vows seconds after their first meeting, newlyweds Jonathan and Stephanie start getting to know each other on their honeymoon in Seville

The experts welcome back the 16 participents for a final review of their experience marrying a stranger. What have they learnt about themselves?

After a dramatic round of homestays, it's time for the remaining couples to face their final Commitment Ceremony and garder advice from the experts. While some couples are happy with their progress, others aren't faring as well.

The couples face the experts one last time, as they reflect on their experience in the experiment and their futures. But for some, the drama continues to unfold.

At the Commitment Ceremony, some marriages flourish, but others begin to wither in front of the group. Will anyone decide to walk away from the experiment, and their partner, for good?

Thomas and the bridges head off on their homestays, where Jordan gets a grilling, Zoe and Jenna struggle to decide where they would live in the outisde world, and Adrian hears some harsh feedback from Thomas' mum and dad.

After four months as husband and wife, Owen and Michelle face a make-or-break decision, as they deal with living 250 miles apart. And David and Shareen grapple with finding common ground.

The two couples who married at first sight enter the final weeks of the experiment. Do they have a long-term future. Will they stay together or seek a divorce?

The drama of the Couple's Retreat continues, as marriages hit the rocks and one bride's worst fears are realised as a bombshell is dropped at the dinner party.

The experts deliver some tough truths to help the couples progress on their journey

The first two couples heading down the aisle are nurse Steph and property manager Jonathan, and office manager Verity and IT consultant Jack.

In this first episode, after a year of rigorous testing and measuring the experts decide who will marry who.

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.

Celebrations at the dinner party are cut short as the Anonymous Letters assignment brings to light some uncomfortable observations for the couples. And a shocking confession from Jordan leaves Chanita with serious doubts about their future.

As the experiment draws to a close, the remaining couples move out of the apartments and prepare for Vow Renewals.

It's wedding day. After months of testing, two couples, matched by experts, meet for the very first time at the altar to get legally married. Will they even fancy each other?

The group reunite for the first time since the experiment ended for one final dinner party, where they find out which marriages have flourished in the outside world and which ones didn't withstand the pressure.

It's the time some couples dread... in-laws week! But one couple's breakthrough proves that in-law intervention isn't always bad. Plus: a new wedding!

At the second dinner party, two grooms arrive alone, and the Honesty Box turns up the heat

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

At another new wedding, a high-speed bride and laidback groom say 'I do'... what could go wrong?! And will more in-law intervention help or hinder harmony?

Four more couples head off on their honeymoon. But while it's romance for some, others struggle to find their spark. And one couple quickly hit rough waters.

More strangers take the ultimate gamble - but will opposites attract when they meet at the altar? And Married at First Sight UK celebrates its first same sex wedding.

The homestays get underway, and while one couple get an unexpectedly warm welcome from the mother-in-law, it's far from home-sweet-home for another husband and wife.

The couples take their seats at the second dinner party. One partner is left wondering if their spouse will even show up, while the honesty box exposes cracks in another marriage. However, rumours about one bride's behaviour behind closed doors spark the biggest conflict of the evening.

Two new couples get wed... sparks fly for some, but there's second thot for others.

At Kasia's homestay, Kwame's in for a shock when he comes face-to-face with her lotal sisters. Back in London, the L-bomb gets dropped, and on a night out, an ongoing fued comes to an explosive conclusion.

Steph and Jonathan are now living together, learning that true love doesn't always run smoothly, as Verity and Jack get to know each other on honeymoon

In this extended opening episode, the brides and grooms enjoy one last night of freedom at their stag and hen parties. The drama kicks off early when one groom's controversial opinion leaves everyone questioning whether he's there for the right reasons.

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.

Mel, Charlene and Paul invite the couples to the couch for the second Commitment Ceremony of the experiment. Some reflect on a positive week, but others struggle to overcome feelings of betrayal. Another marriage is rocked by a lack of attraction, forcing them to face the tough decision of whether to stay and work at their marriage, or leave the process - and each other - for good.

Mel, Paul and Charlene offer their expertise at the penultimate Commitment Ceremony, with one couple having to confront difficult truths as their future is called into question.

The penultimate dinner party serves up an extra helping of drama, as the anonymous letters force the group to face some uncomfortable truths. And a clash over communication leads to an explosive confrontation between one couple.

Would you marry a complete stranger you first meet on your wedding day? A panel of experts match up a couple. Will true love flourish for these two singletons looking for The One?

At the final Commitment Ceremony, the remaining couples seek the experts advice one last time. As crucial decisions are made, one bride faces up to some difficult truths, and the revelation of a secret scandal shocks the group.

The group return from the retreat and head straight for the Commitment Ceremony. Some couples reap the rewards from their time away, but for others turmoil grows, departures loom, and one bride questions whether her marriage is beyond repair.

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.

On the second day of the retreat, the husbands and wives spend time apart on separate group days out, but things turn sour when several of the women confront another bride.

The group reunite for one final dinner party. Old feuds flare up and a shocking rumour is revealed, but which marriages have flourished and which have failed?

Wedding bells ring again as another couple step into the unknown and join the experiment. Back at the apartments, the married couples open the door to some familiar faces during In-laws Week.

The next phase of the experiment begins as the first four couples go on their honeymoons. Some relationships blossom, while other couples aren't sure they're compatible.

On the second day of the couples' retreat, the group reunite for a dinner party. Revelations from the previous day are brought to a head at the table, leading one bride to hit back at the group and throwing another's marriage into turmoil.

In the reunion commitment ceremony, the couples celebrate the journeys and confront their issues as they look to the future. One husband makes a final admission that shocks the whole group.

In the final reunion ceremony, the group look back on their time in the experiment. And can the experts help one marriage hanging in the balance?

It's the reunion dinner party and in true MAFS style, across-the-table action is served as two brides clash. One groom faces a reckoning for his behaviour as the couples learn which pairings survived in the outside world.

The next phase of the experiment begins, as the first four couples embark on luxury honeymoons in the sun.

The couples have their final dates and their last chance to consider their futures. But will the dates strengthen bonds, or lead to difficult disscussions?

The couples face the experts at their very first Commitment Ceremony, where they must make a critical decision: whether to stay in the process and continue working on their relationships, or choose to walk away from their marriages for good.

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 couples come together for one last time at the final dinner party. But celebrations are cut short when the honesty box delivers some uncomfortable questions.

More of the married couples' loved ones visit for In-Laws Week, but one husband receives a damning review, while another new pair join the search for love.

It's Partner Swap Week, where everyone spends time living with a different bride or groom. While absence makes one groom's heart grow especially fonder, time apart reveals troubling fault lines in other marriages, testing one couple's relationship.

The couples have reached the first Commitment Ceremony, where they meet to discuss their marriages with the experts and also make a critical decision.

Series nine concludes with the final Reunion Ceremony, a last chance for the group to meet with experts and look back on their time in the experiment.

Another pair of brave singles walk down the aisle, but will a frosty first impression leave one bride out in the cold? And will there be harmonious honeymoons for our freshest newly-weds?

Our last newly-wed couples jet off on their honeymoons. Love blossoms for some but others begin to feel the strain, and one bride is pushed to breaking point.

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.

Marriages are put under the spotlight once more at the second Commitment Ceremony, as the experts deliver some hard-hitting truths to help the couples progress

It's a crucial moment for the remaining couples as they embark on their final dates, which offer a chance to reflect on their journey through the experiment.

With Richard and Harriet about to exchange their wedding vows, newlyweds Benjamin and Stephanie are already on honeymoon in Mallorca - and starting to get a little closer

The remaining newly-weds head off across the world to enjoy luxurious honeymoons. For some, feelings flourish in the tropical climes, but others start to feel the heat of their marriages, which pushes one couple to breaking point.

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.

The next phase of the experiment begins, as the newly-weds move into their apartments and come together for the very first dinner party. But events take a dramatic turn when emotions run high for the couples who are struggling to find marital bliss.

The couples get a taste of the future as they embark on their homestays. But immersing themselves in each other's worlds raises big questions for some...

Another four strangers take the ultimate gamble on love and tie the knot with a total stranger. While one bride gets more than she bargained for, an overprotective friend threatens to spoil the big day for a groom and his new husband.

The next group of newlyweds fly off to tropical climes, but while fun in the sun is on the cards for some, others find their first break away together far from blissful.

The two married couples are in the final weeks of the experiment. Do their 'instant marriages' have a long-term future? Will they even make it as far as Decision Day?

Three of the couples spend time apart to reflect on their future. When they're reunited, they must decide whether to stay married or go their separate ways.

It's the final boys' and girls' night out, with old friends joining the fun. But one familiar face's shocking revelation sparks the mother of all showdowns.

The first four couples embark on romantic honeymoons, giving them the first opportunity to really get to know each other after the extraordinary excitement of their wedding days.

As two new singles meet and marry at the altar, a bride hopes to find a man who can handle her, while her groom prepares to drop a bombshell of a revelation.

Before our 16 strangers walk down the aisle, they celebrate their last night of freedom, at the ultimate stag and hen parties, where a surprise is in store. And the first two couples get married.

The couples come together with the experts at the Commitment Ceremony. While love is in the air for some, a shock revelation sends the group reeling, putting more than one marriage on the line and leading to a tense, nail-biting showdown in the most dramatic ceremony of the series.

'Yes Week' begins and brings some of the couples closer together but pushes others to breaking point. Plus: an ultimatum turns up the heat for one couple.

The couples are tasked with sharing what they like and don't like about each other in Love/Hate Week. While some of them open their hearts, others face brutal criticism. And a video from the past makes one marriage plummet to an all-time low.

The problems between one husband and wife worsen, close family ties put strain on another marriage, and probing questions from friends lead to an explosive argument.

As the newly-weds prepare to move in together, the Covid-19 pandemic hits Britain. Owen and Michelle's lockdown love-in leads to a dilemma, while David and Shareen enjoy a romantic getaway.

The penultimate Dinner Party packs an emotional punch when anonymous letters compel every couple to face their problems head-on, and tensions rise as two of the group clash.

The second dinner party brings surprise guests who send shockwaves through the group. A dream couple hit a bump in the road and one bride questions her future.

It's commitment crunch time as the vow renewals continue. One emotional groom questions whether he's enough and one couple decide if long-distance can survive.

It's the all-important homestays and one half of the couple get a glimpse of their future in the outside world, with some serious grillings from the in-laws.

Instant sparks fly in a passionate ceremony as our final couple get wed. And as the in-laws keep coming, one bride falls short for a frustrated friend.

There's a showstopping entrance and a major wobble as four more strangers say 'I do'. And our first set of newly-weds jet off on their honeymoons, but are cracks beginning to show?

Wedding bells chime once more, as new couples meet each other for the first time at the altar. While one couple have an instant, electric connection, another bride puts absolutely everything on the line.

Four more singles looking for love take the ultimate gamble and join the experiment. Two more weddings lie ahead, but one picky bride has a lot to say about her groom, and an initial lack of spark threatens to overshadow the other couple's happy day.

Michelle and Owen have an awkward start to married life, leaving them questioning their fledgling romance. And David and Shareen hit a bump in the road on their honeymoon.

The couples spend time apart at group girls' and boys' days out. There are a few home truths from the guys and a revelation leaves the girls dumbfounded.

It’s Yes Week... the newly-weds explore power play in their marriages and move in together

A new chapter begins for all of our newly-weds as the first task of the series is set. Confessions Week is designed by the experts to help the couples open up to each other, but brutal feedback could knock the group's golden couple off their perch.

The final batch of newly-weds head off on their honeymoons, but it's not long before they hit bumps in the road. And In-Laws Week continues, driving one marriage towards breaking point.

It's Dinner Party time, and the aftermath of the big days out creates tension. Two husbands clash when one of them tries to defend his wife's honour, and a dinner table disagreement sends another couple on a downward spiral. However, it's a surprise arrival that delivers the biggest shock of the evening.

The experts match another two couples, but when the big day arrives, one bride and groom quickly discover that their differences may be an issue

The three new couples make a surprise entrance at the dinner party, sparking friction between one husband and wife.

Our first two couples enter the experiment and get wed! An unexpected surprise transforms one groom's big day, but will an impromptu musical outburst and a potential ick threaten another's?