Camouflaged Workshop & Horsebox Den

George meets Dai Saunders, who has a plan to lure his kids away from their gadgets and mobile devices by getting them to help build a spectacular, camouflaged crafting workshop at the end of the garden. In Derbyshire, aspiring 14-year-old architect Fran wants to create her own hangout den in an old horsebox - using birthday money and savings. In Tokyo, one of the most densely populated cities in the world, George visits a tiny house that's actually pretty big. And George and Will visit the Sussex countryside and a tree-house like no other that hovers among the trees.