Overview: Bridges move people and cargo everyday, but what happens when the bridge itself needs to be moved? In this episode of Mega Movers, we look at how two very different bridges are moved using two very different methods. In Missouri, local bridge preservationists will attempt to transport a 137-ton railroad bridge right through the heart of downtown Kansas City. And in Iowa, the National Guard is called in to save a 129-year old bridge using one of the most modern mega moving tools available: a Chinook helicopter. Will the Mega Movers succeed in preserving these beloved bridges for future pedestrians to use?