Whilst Stacey is thrilled to be living back home Gavin tries to come to terms with the culture shock of working with his new Welsh colleagues. Nessa, now living with Dave, throws a christening party for baby Neil, attended by the Shipmans and Smithy and Rudi and their narcoleptic mother Cath. Bryn's lusty singing at the church inspires Pam in her desire to be on 'Britain's Got Talent' but Smithy, having paid for the christening, is annoyed to learn that it is doubling as Nessa and Dave's engagement party. Gavin and Stacey, however, are inspired by the occasion to consider starting a family of their own.