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, while 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?
Stacey is trying for a new job while ensuring Gavin sticks to his recent promise! Dave is not a happy bunny when Nessa tells him she is taking Neil the baby to Essex to see his dad. Meanwhile, over at the Shipman's house, Dawn and Pete have joined Pam and Mick for a beer-and-curry night of huge proportions - at the Billericay house of fun.
Pam and Mick are having second thoughts about the conservatory, while Bryn is in his element as he awaits the arrival of his house-guests - all the Essex boys down for a big night out in Cardiff - and having a sleep-over at his place! Smithy gets in a state about seeing Nessa after their most recent embarrassing meeting, and Stacey makes a worrying discovery. But is telling Gavin the right thing to do?
Gavin is uncomfortable with Gwen and Bryn knowing the ins and outs of his and Stacey's sex life, and Smithy goes beyond the call of friendship by making a staggering suggestion. Meanwhile, Pete and Dawn prepare to renew their wedding vows and everyone heads to Billericay to help them celebrate. But how will Dave react to the bombshell revelation about the curry night in Essex?
It's Bank Holiday Monday, and the Essex contingent arrives for a sunny day out at the beach - even Doris is wearing her sundress! Gavin's heart-to-heart with his dad gives him something more to think about, and a dark cloud looms on the horizon when Dave arrives to find Nessa and Smithy enjoying all the fun of the fair.
Nessa and Dave's wedding is fast approaching and the preparations are in full swing. Stacey breaks some life-changing news to Gavin, while Bryn and Jason finally put their big secret to bed. Smithy takes care of Neil the baby and wishes Nessa all the best, as she makes her way to the church to marry Dave.