In this third and final episode, Dr Michael Mosley tells the extraordinary story of how scientists learnt to use the world around us to heal our bodies. Poisons in the natural world kill thousands of people every year. Yet today, the hunt is on for other poisons that can actually help to cure us.
Richard Hammond concludes his look at miracles in the natural world by discovering some incredible animal super-powers that have inspired scientists and engineers to create brand new human inventions that could change the way we live.
American Ninja Warrior is the ultimate obstacle course. Watch each week to see who earns a chance to win $500,000 cash.
The inspiring world of Leonardo da Vinci is brought to life by acclaimed BAFTA award-winning actor Peter Capaldi in a unique dramatised documentary. Inside The Mind Of Leonardo is based on the artist's private journals dating from the Italian Renaissance.
Inaccessible and ravaged by war, filmmakers have not dared journey into its realm until now. Amidst the small mountain towns and ruins of rural Afghanistan is the land of the mighty River Oxus. This was the final frontier of Alexander the Greats vast Empire.
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