Debs and Dorothy are off on a sailing weekend leaving Gary and Tony to their own devices.
Tony has developed a new interest in carpentry and tells Debs he is building a sauna for them and will be complete by the end of the weekend. While out in the garden, the lads spot some visiting ladies next door and invite them round for a BBQ. While Tony thinks he's onto a sure thing with his chosen bird, it turns out Gary strikes lucky but despite being pleased with his adulterous weekend, underestimates his commitment to Dorothy.