James Corden

Flamboyant and with a hair-trigger temper that more than once led to him pulling a gun on musicians, 1960s British pop producer Joe Meek makes Phil Spector look like a pussycat. From Meek's ascension to the top of the charts with 'Telstar' to his dabblings in the occult and implication in a boy's murder, the film charts the composer's tumultuous life.

Smithy and his friends travel to Wales for a weekend of fun with Gavin, leaving Bryn's house overcrowded. Meanwhile, Stacey fears she may not be able to have children.

On Gavin and Stacey's wedding day, the Shipmans and the Wests are beside themselves with excitement and pride. But will Smithy's emotions, Bryn's awkwardness and Nessa's secret spoil the day?

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.

Following her and Gavin's decision to try for a baby, Stacey attempts to get a new job to earn extra money and is given a tough mock interview by Bryn. Meanwhile, Nessa takes baby Neil to see Smithy in Essex, which angers Dave who is left at home with Nessa's father. After a drunken night of beer and curry at Mick and Pam's, Smithy and Nessa wake up in bed together.

Gavin starts his new job in Cardiff and Stacey is thrilled to be at home again. Smithy comes to terms with life in Essex without his best friend, while Nessa is adjusting to life in Dave's caravan down in Sully. The weekend brings with it a big reunion, as everyone meets up for the christening of baby Neil, where Gavin and Stacey decide to try for a baby themselves. Nessa's father, Neil Jenkins (Ifan Huw Dafydd) makes his first appearance in the show...

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

Guided by Bryn's satnav, the Wests go to Billericay for Gavin and Stacey's engagement party. 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.

Stacey heads 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 them. Then Stacey drops a bombshell and tells Gavin that it can't work between them because they both need to live in their own towns.

Nessa and Dave's wedding day arrives. Stacey has some exciting news for Gavin - she's pregnant at last. Smithy walks in on the wedding and tells Nessa that she should not marry Dave because he knows the only reason she wants to marry Dave is so Neil has a father, which he's already got in Smithy. Dave admits that he knows Nessa never loved him. The two of them shake hands, and Dave leaves the church. The episode cuts to 6 months later, where we see...