Mighty Machines: Diggers & Dozers - DVD

Building, blasting and crushing! It's all in a day's work for front-end loaders, diggers and dozers! Huge shovels dig foundations, a towering crane builds a skyscraper, dynamite sends a smokestack crumbling to the ground, and a colossal crusher grinds up rock. So, grab your hard hat, and let's get rollin'! Episodes - at the Construction Site - at the Demolit...