Gavin & Stacey air date, plot and cast: Everything you need to know about The Finale

James Corden chats to BBC Breakfast at Gavin and Stacey filming

Gavin and Stacey is set to finally return to TV screens this December with a final ever episode. It's been five years since the hit BBC sitcom last aired, with the series having been left on a huge cliffhanger after Nessa (Ruth Jones) proposed to Smithy (James Corden).

Gavin & Stacey The Finale is due to air on Christmas Day on BBC One, but a time is yet to be released by the broadcaster. However, it has been confirmed that the one-off festive episode will be 90 minutes long.

There's only been one first-look photograph released so far, and no trailer, as the BBC aims to keep details of the finale under wraps. The promo photo shows Gavin (Mathew Horne), Stacey (Joanna Page), Smithy and Nessa standing together against a red wall.

Gavin and Stacey is back with one final episode (Image: BBC/Fulwell73 & Tidy Productions/Tom Jackson)

The BBC has teased what's to come in the episode, with the synopsis reading: "It’s five years since we left Nessa down on one knee declaring her love for Smithy and asking him to marry her. And a lot has happened in those five years.

"In Barry, Bryn’s packing the Picasso in readiness for a trip to Essex; Stacey and Gavin are looking for new ways to spice up their seventeen year marriage and Gwen is behaving most strangely. Nessa’s started a new business venture and Neil the Baby’s about to begin an apprenticeship with his dad.

"Over in Billericay Pam is stressing out at the prospect of playing hostess, not helped by a newly retired Mick practicing his golf swings in the living room and there have been more ups and downs in Pete and Dawn’s relationship. Join us on the journey to Barry and Billericay as we catch up with the Shipmans and the Wests for the very last time and maybe find out what exactly did happen on that fishing trip."

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Alongside the new Christmas special, a documentary is due to be released which tells the story of the popular sitcom across the last 17 years. Featuring creators James and Ruth, as well as the cast and crew, the documentary will show the final episodes being filmed as everyone bids farewell to the show for good. Gavin & Stacey: A Fond Farewell is coming to iPlayer and BBC One, with a date yet to be specificed.

Another Gavin and Stacey special will also be released ahead of the finale. Barry Island Discs: Gavin & Stacey's Big Songs Send Off will land on BBC Radio Wales and BBC Sounds on 23 December.

Hosted by The One Show's Alex Jones, the show will relive some of the key musical moments from the sitcom and will also include exclusive interviews with James, Joanna and Larry Lamb, who plays Mick Shipman.

Alex said: “Like the rest of the nation, Gavin & Stacey got me hooked from the first ever episode. That’s why I’m thrilled to be hosting Barry Island Discs: Gavin & Stacey's Big Songs Send Off. Join me and some of your favourite cast members as we laugh, dance and cry to the show’s great soundtrack, all while they share some exclusive behind-the-scenes stories. You don't want to miss this!"

Gavin & Stacey: The Finale will air on BBC One on Christmas Day.

Gavin & Stacey air date, plot and cast: Everything you need to know about The Finale

Gavin & Stacey air date, plot and cast: Everything you need to know about The Finale

Gavin & Stacey air date, plot and cast: Everything you need to know about The Finale

Gavin & Stacey air date, plot and cast: Everything you need to know about The Finale

Gavin & Stacey air date, plot and cast: Everything you need to know about The Finale