It's been ten years since the worlds of Billericay and Barry have been brought together.

And finally, the synopsis for Gavin and Stacey’s reunion episode has been revealed.

This comes after fans went wild for the minute-long trailer which was shared on James Corden’s Twitter.

The Gavin and Stacey Special will be on BBC One at 8:30pm on Christmas Day.

It reads: “This year we’re off to Wales for the festivities, where Bryn (Rob Brydon) is cooking dinner for over thirteen people. Understandably he’s tense.

"Pam (Alison Steadman) would secretly prefer to spend Christmas in Essex as she finds Gwen’s (Melanie Walters) house a bit lacking.

"But the deal has always been that they alternate every year, and this time it’s the turn of the Wests to host Christmas with everyone under one small roof."

The synopsis continues: "For Gavin (Mathew Horne) and Stacey (Joanna Page), parenthood continues to present them with several challenges, their ‘baby’ now being ten. Smithy (James Corden), too, continues to commit to his fatherly role, making the journey to Barry at weekends and every second Wednesday to see twelve-year-old Neil the Baby.

"Nessa (Ruth Jones) on the other hand adopts her own brand of Nessa-style mothering whilst Pam, Mick (Larry Lamb) and Gwen have become the epitome of doting grandparents.

"On Christmas Eve, Dawn (Julia Davis) makes a shocking discovery about Pete (Adrian Scarborough) that jeopardises their marriage (again) and a visit to the pub that night is an eye opener in more ways than one."