After the cliffhanger ending of 2019, the sitcom returns one final time to find out whether Smithy said 'yes' - and what else is going on with the Shipmans and Wests. Seventeen years of marriage has found Gavin and Stacey in a bit of a rut so they are looking for ways to spice things up, while Nessa is launching a new business now that Neil the Baby is starting an apprenticeship with his dad. Bryn prepares for a trip to Essex and Gwen is behaving very strangely. Over in Billericay, Pam is stressing out about playing hostess - and a newly retired Mick practising his golf swings in the living room is not helping.
