George meets a couple turning an old army truck into a mobile holiday home and visits a luxury tree house in Dorset with a sauna, spiral staircase and even a slide

George meets Sam, a man with spinal muscular atrophy who is designing an accessible mobile home. And work continues on his rotating house project.

George meets Tabitha, who's building a new mobile juice bar out of a horsebox after her last one was stolen. And in New Zealand he visits Waiheke to see a modernist tent.

George meets Ali and Rich, who hope to salvage one of the rarest caravans made. And in Devon, Nick wants to build a garden studio for his mother-in-law out of a dog house.

George meets a teacher building a classroom in a salvaged jet and a Devon couple turning a cricket scorebox into a garden hang out. There's also a steel tree house in New Zealand.

In Lincolnshire, a couple are adding a dance floor to a rare campervan, while a small Stirlingshire business converts a Sea King helicopter into luxury overnight accommodation

George meets a Dorset couple building a room with great views over Chesil Beach. There's also a doggie campervan, and a remote lodge made almost entirely of glass in New Zealand.

George meets a Cornish couple turning the country's most expensive public loo into a luxury cliff-top holiday home. He also unveils his futuristic rotating home at Pinewood.

George and Will Hardie help Jan Fursier bring to life her dad's dream for a caravan, taken from plans found in his secret wartime diaries during his time as a Japanese prisoner of war