Host Mo Rocca shows us the creator of the Jetfoiler Surfboard that rides high above the waves; the device pointing the way to friends lost in crowds or wilderness; the weeding robot keeping gardens growing their best; and, the importance of the train caboose, bringing up the rear.

Host Mo Rocca shows us the fishing cannon that fires your hook and bait hundreds of feet into the water; fighting droughts with rainwater cisterns; self-healing glass; and, how tractors changed the farming world.