The Robshaw family are experienced time travellers, but this time they are going further back than they have ever been before - to the turn of the 20th century, to discover how the food we ate and the way we ate it helped shape the modern family. An ordinary house in south London is their time machine, transporting them through five decades and two world wars. Guided by presenters Giles Coren and social historian Polly Russell, they trace the incredible changes to Britain's diet and the extraordinary social transformation they reveal.