It's Tom's 30th birthday and he wants to wake up to Bucksfizz. Linda surprises him by arranging a party piece, bringing Jez and Suze around to do a birthday dance for him. But Tom wanted the drink, not the group. Tom's dull, boring and prudish parents come to visit, so Tom tries to be more discreet about his sexuality. He persuades Linda to flirt with his dad in order to scare them away. But everything goes wrong when Tom discovers that they have a secret of their own. (thetvdb.com)