Aired: 6/4/2013
A futuristic array of luggage conveyors; a manned rover designed for exploration of other planets.
Toughest work environments, including fighting fires, cleaning up waterways and repairing an Olympic venue.
Aired: 6/11/2013
Grand Central Station in New York City; class four rapids; a port that ships out scrap metal.
Gator wrestling; NASCAR pit crews; a Las Vegas show; the Goodyear Blimp.
