What on Earth?: Season 12, Episode 3

12 - 3: Indiana's War Factory

Satellite images capture a large compound of abandoned structures overgrown with vegetation in Clark County, Indiana. Experts investigate and uncover the Indiana Ordnance Works, a derelict WWII munitions factory that played a crucial role in US military history, producing smokeless gunpowder. In 1964, its name changed to the Indiana Army Ammunition Plant.