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. But how will Smithy react to news from Nessa that it is a double celebration? And what will Gavin's answer be to Stacey's request?