Every year, Joyce, Alan, Maureen, John, Trevor and Carol go away for a 60s weekend at a seaside resort. There are activities, dancing and old 60s acts playing live, but this year's different - Alan's messed up the booking and they've only got two rooms between six. John's feeling old and decides to prove he's not by trying to get to the top of the climbing wall, and Carol bumps into an old male friend who could throw her and Trevor's marriage back in the air...