Overview: In this final episode of the series Heston Blumenthal tackles the challenge of making the ultimate Christmas dinner. In the grownup world, Christmas has lost some of its wonder. Heston wants to change that and plans to create a supersized festive food adventure, to be enjoyed by a group of adults who normally have to work on Christmas Day. Heston visits Hampton Court, and discovers that instead of turkey, our ancestors preferred to eat pig's head. Heston wants to put this on the menu alongside edible Christmas decorations. The final part of Heston's historical yuletide wonderland takes inspiration from the Victorian period, and their love of Christmas pudding. Heston makes the biggest Christmas pudding ever - one that's large enough to step inside.