Jon Richardson checks out advances in prolonging life. Phil Wang finds new ways to make a living. Alice Levine reckons robots are getting as smart as humans.

Jon visits America's most eco-friendly town. Phil heads for a futuristic farm in China. And in Japan, Alice finds out where robots go to die.

Kevin dispatches Jon to the US to explore the latest advances in food. Phil is off to China for a stomach-churning solution to waste. And Alice heads for Japan and an encounter with robots.