Host Mo Rocca shows a teen who invented a battery-free flashlight; diagnosing million-dollar violins with CAT scans; cloth that generates electricity; and is payment technology making wallets extinct?

Host Mo Rocca shows how nanotechnology could make dirty clothes a thing of the past; how food packaging changed how we shop; innovations that are taking the frustration out of finding that parking space; inventions to make sure you never lose your keys again.