Welcome back to The Past Is Now and our final episode of Series 1. In this last episode, historian Andy Chatterton, tells us all about Britain's secret defences on the Home Front during the Second World War. As he states, the narrative around Britain's anti-invasion forces usually centres around 'Dad's Army' type characters running around with pitchforks, unprepared for an invasion. Today, Andy tells us how far from the truth this really was.