Pam and Mick unexpectedly arrive in Barry, and everyone (including Smithy and Doris) decides to spend the sunny day on the beach. But there are two questions on everyone's mind: will Dave be there, and is Gavin really okay?

Cast: Mathew Horne, Joanna Page, Alison Steadman, Larry Lamb, Rob Brydon, Margaret John, Melanie Walters, Ruth Jones, Steffan Rhodri, Johnny Tudor, James Corden, Gwynfor Roberts, Ewan Kennedy, Oscar Hartland