Season 4 - Episode Guide

Host Mo Rocca shows us the man making mansions in the trees; the innovator turning your smart phone into an underwater camera; making Mexico's highways greener with vertical gardens; and, when the railroad world ditched steam for diesel.

Host Mo Rocca shows us an innovative surf park in the North Wales countryside; stopping police chases with a tire lasso; the watch for the blind getting popular with the sighted; and the speed of flight, from the Wright brothers to space.

Host Mo Rocca shows us the London innovator creating artistic globes of the world; the woman who took her grandmother's tea recipe to make food last longer; the drone finding and clearing landmines from war-torn countries; and, the place where modern-day technology began.

Host Mo Rocca shows us the new art form of lighting your fingertips; inventing the alien rock grabber; earbuds that translate languages in real time; and, the history of roads connecting the country.

Host Mo Rocca shows us the social worker who created a wireless phone-charging purse; reversing hidden hunger by enhancing food nutrition; the daddy of java, Mr. Coffee; and, turning fog into water.

Host Mo Rocca shows us the fold-up kayak; the British inventor changing hair color with the wind; how Thomas Edison inadvertently invented the electric tattoo pen; and, the mesmerizing movements of the Strandbeest.

Host Mo Rocca shows us the art of the folding pop-up greeting cards; the inventor of shoes that grow along with the child's foot; tents that are taking to the trees; and, how electricity first moved from the lab to the home.

Host Mo Rocca shows us the innovation of floating down a river on a hammock; the fingerprint padlock; looking back at the female pioneers of the sky; and, saving eyesight in Africa with a smartphone app.

Host Mo Rocca shows us the hands-free peg leg crutch for leg injuries; the latest inventions for pregnancy and babies; smelling the world with your phone; and, the reading book that taught our ancestors.

Host Mo Rocca shows us the cargo carrier that follows you; the device that allows doctors to examine you from the other side of the world; a new spin on the old-world butter churn; and, when the car industry moved to muscle cars.

Host Mo Rocca shows us the bat B&B keeping bugs at bay; the wristband saving electrical workers from shocking danger; the historic balloon reaching the stratosphere; and, the kinder, gentler horseshoe.

Host Mo Rocca shows us the latest innovations coming out of London and Wales, including an inland surfing park; hair coloring that changes with wind and temperature; earbuds that translate foreign languages in real time; and, Edison's delivery room for the technology boom.

Host Mo Rocca shows us the underwater drone bringing bait to the fish; the inventor of 3D printing; updates on past innovators; and, how railroad signals changed train traffic.

Host Mo Rocca shows us tunnels of sound with directional speakers; how silver thread has put an end to smelly clothes; the first modern copying machine; and, an innovative manual clothes washer.

Host Mo Rocca shows us the fireless grill that cooks using heat from the sun; the sponge that can sop up ocean oil spills; the scuba diving tank you can pump up by hand; and, the innovator whose "car of tomorrow" failed to catch on.

Host Mo Rocca shows us the women who invented a new way to keep food fresh; the inventor of the self-cleaning gym bag; the newest way to travel with wheels on your feet; and, the designer who changed the world's taste.

Host Mo Rocca shows us the wristband that relieves stress; a chair that makes you balance and sit up straight; the personal air monitor; and, the history of clocks.

Host Mo Rocca shows us the woman who used her grandmother's tea to keep food from spoiling; the social worker who invented the phone charging purse; the scientist who took a balloon into the stratosphere; and the new take on the age-old butter churner.

Host Mo Rocca shows us the underwater trash can cleaning up harbors; the spray-on touchscreen that can change the computing world; concrete cloth building fast, rock-hard homes; and, the history of roadside lodging.

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 the amazing designs of magnetic liquid; the app that can detect head injuries; the drone planting forests; and, the history of the lathe which changed machinery.

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.

Host Mo Rocca shows us the woman who started an organization to encourage young women to learn computer coding; the man who created a paper airplane drone; how designers Charles and Ray Eames used design to teach math; and, the glove helping the disabled.

Host Mo Rocca shows us the cat backpack; the man who invented the Segway; we get inventive advice from the innovators we've profiled; and, the history of pressed glass.

Host Mo Rocca shows us the inexpensive artificial arm invented by a teen; the mouthpiece that's an automatic toothbrush; the mechanical snake that seeks out water pollution; and, the machine based on early computer theories.

Host Mo Rocca shows us the innovation of floating down a river on a hammock; the inventor of shoes that grow along with the child's foot; the mesmerizing movements of the wind-driven sculptures called Strandbeests; and, how electricity first moved from the lab to the home.