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 mate, whilst Nessa is adjusting to life in Dave's caravan down Sully. The weekend brings with it a big reunion, as everyone meets up for the christening of baby Neil.

Cast: Mathew Horne, Joanna Page, Wayne Cater, Alison Steadman, Larry Lamb, James Corden, Ruth Jones, Steffan Rhodri, Melanie Walters, Steve Meo, Rob Brydon, Sheridan Smith, Pam Ferris, Margaret John, Ifan Huw Dafydd