Architect George Clarke meets Kay from Stockport, Greater Manchester, who breathes life back into an ambulance as she turns it into a ski chalet on wheels. An oil rig lifeboat owner tries to get his build shipshape and plush enough to convince his partner to move on board. Plus, George and contributor Will Hardie indulge in a slice of Africa in the Midlands, and Will visits an awe-inspiring Thomas Heatherwick building in Leeds that puts nature at its very heart.