Host Mo Rocca shows the creator of the pop singer's best friend, Auto-Tune; Rosa Parks and the bus that changed the world of race relations; humanoid robots are making it into the mainstream; and skimming the plastics from our oceans.

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?