Meet Bob. Bob builds things. Since Bob could walk and talk he has successfully created some pretty wacky inventions. A sample of Bob's creations: a tagging briefcase, a life-size Swedish marble game and a machine that shoots paper airplanes. In order to get inspired for new challenges, our mad scientist will take to the streets to find out what inventions average Americans want. Then he'll go to work. Through trial and error and the joy of problem-solving, Bob will design and build his next great invention, weaving in core history and science along the way.