Host Mo Rocca shows us the rocket scientist who invented the Super Soaker squirt gun; the street-traveling delivery robot; the light that uses gravity as power; and, the historic Le Mans race between Ford and Ferrari.

Host Mo Rocca shows us the best of our first 100 shows, including the wolves of Yellowstone; the teen who created an app to help those being bullied in school; the Jetman who flies with wings on his back; and, the story of Rosa Parks and restoring the bus where she made history.