Stacey and Gavin return from honeymoon to a big welcome from both families. But Smithy seems none too happy with his best mate and Nessa has a confession to make that throws the whole evening into disarray.

Devastated by the news he's to become a father, Smithy goes AWOL. The boys finally track him down, but can he be persuaded to do the right thing? Stacey is shocked to hear of Gwen's new domestic arrangements as the prospect of living in Essex finally hits her.

Stacey feels dejected because she cannot get a job and Pam tells her she needs to get out more. Smithy needs Gavin's shoulder to cry on because his girlfriend split with him over Nessa's pregnancy and told him she was seeing a younger man anyway. Gavin, Stacey and Smithy head for Barry so that Smithy can go for the scan with Nessa. Smithy lodges with Bryn, who has turned his spare room into a gym and sets about getting Smithy into shape.

Stacey is miserable and homesick because she still hasn't got a job, or her own home. She feels she's getting under everyone's feet, especially when Pam interrupts her during her shower. Gavin tries to console her but she says he just doesn't understand. Pam admits to Dawn that having the newlyweds staying in her house is getting a bit much. (Dawn and Pete are still looking for a threesome.) Gavin and Stacey go to view a potential flat and are shown round a tiny, dirty studio by over-enthusiastic estate agent Duncan.

Stacey and Gavin are still in conflict over where they should live, with Gavin refusing to even consider the idea of living in Barry. Smithy admits to Gavin that he had another fling with Nessa and realises he's going to have to face her again at the surprise party Bryn is throwing for Gwen. Bryn is panicking because he wants to keep the surprise barn-dance themed party a surprise…but he's also having trouble getting enough people to attend.

Gavin seeks counselling for his marriage troubles from Smithy, but Smithy’s idea of relationship therapy is to organise a surprise lads night out at a nightclub foam party. While the lads are knee deep in foam, Stacey is with her family at a bingo night.

Stacey travels to Essex and back into the arms of Gavin. Everything seems perfect until Pam and Mick offer to cover the down payment on a house for Gavin and Stacey.

After being phone buddies for months, Gavin and Stacey finally arrange a rendezvous in Leicester Square, with Stacey's best friend Nessa and Gav's pal Smithy coming along for support.

After a huge misunderstanding on the phone, Stacey thinks Gavin has finished with her. He drives to Wales to explain and ends up taking her home with him. Having never been further than Bridgend before, Stacey's trip to Essex is an eye-opening experience that ends with the biggest surprise of all.

After his initial angry reaction to Stacey's news, Uncle Bryn agrees to drive them all to Essex to meet the Shipmans. Pam has laid on a cracking spread and the party goes with a bang. But then Gavin and Stacey make an announcement that throws all the bonhomie out the window.

The Shipmans drive down to Wales for the wedding fayre. After an eventful trip to church to hear the banns being read, Nessa confides in Stacey her big secret.

Stacey's brother Jason arrives home early, much to Uncle Bryn's horror. Stacey has her hen night and Gavin has two stag nights, the second of which reveals something about Stacey that could jeopardise the whole wedding.

The wedding day has finally arrived, but will they go through with it? Will Uncle Bryn finally admit to what happened on the fishing trip and will Nessa do what she knows she must?

As Nessa and the Wests head to Essex to spend Christmas with the Shipmans, Gavin and Stacey have a startling announcement to make.

A behind the scenes look at the making of the 2008 Christmas special.

A collection of interviews from the cast of Gavin & Stacey on the series creation and its widespread appeal

A mini featurette of the making of Series 1 Episode 1 when Gavin meets Stacey for the first time in Leicester Square, London. Featuring James Corden, Ruth Jones and the rest of the cast and crew.

A collection of outtakes and bloopers from Series 1

A behind the scenes look at the creation of Series 2 with added commentary by co-creators Ruth Jones and James Corden

A behind the scenes featurette of James Corden and Ruth Jones appearing on Friday Night with Jonathan Ross to promote Gavin & Stacey

A collection of outtakes and bloopers from Series 2

A collection of interviews from the cast and crew of Gavin & Stacey about their favourite moments across the shows lifetime.

No Longer Occurin' features James Corden, Ruth Jones and the rest of the cast and crew. They reminisce about the show, and also talk about why the show ended

A behind the scenes set visit for Gavin & Stacey on the Welsh TV network 'Uned 5'

A collection of outtakes and bloopers from Series 3

A look back at the cast of Gavin and Stacey, and see where they are today...

The families get together once again for Christmas. Bryn is cooking dinner, Dawn is in shock, and there are revelations in the pub on Christmas Eve.

BBC Breakfast have exclusive access to the set of the Gavin and Stacey Christmas Special in Barry Island. James Corden shows them around the actual houses where it is filmed and speak to Ruth Jones, Joanna Page, Mathew Horne and Rob Brydon.

Stars and writers Ruth Jones and James Corden look through the best outtakes from all three series and the 2008 Christmas special of the award-winning Gavin and Stacey.