Extreme Machines is dedicated to finding out how machines work. Today's tank is a highly sophisticated and complex Extreme Machine. This program features the most advanced tanks in the world today and includes intimate interior camera access giving us a glimpse of the claustrophobic world of the tank crew as we follow them in battle scenarios. Gripping archive footage documents tanks in action from the First World War to Desert Storm. We also take a look at the future with exclusive footage of the formidable US Future Combat System - a tank to be reckoned with.