Host Mo Rocca shows us the baker using math to create her artistic pies; the creator of the Jetfoiler Surfboard that rides high above the waves; the handheld device saving lives by detecting peanuts and gluten in foods; and, the importance of the train caboose, bringing up the rear.

The firefighting device that blasts water through walls; the inventors of the car diagnostic module that tells you what needs to be repaired; the inventor of the smart baby bottle that keeps track of an infant's feeding; when cars went from big to compact.