Gastric's Christmas Meal

At Christmas, Granville must persuade his regulars to buy some mistletoe mince pies. Eric and Cyril refuse to be taken in by promises of romantic enhancement in every box - but could the pies actually work? The Black Widow decides she is taking Mr Newbold Christmas shopping, Madge and Mavis discuss whether to invite Gastric for Christmas dinner, and Leroy tries to enlist Ruby's help to stop Beth seeing Gerald.