Hosted by television actor Gerald McRaney, this episode from the History Channel series profiles the tank, a veritable land-based battleship that's a crucial component to any modern army. Highlights include rare combat footage of the first tanks in World War I racing across the battlefield at four miles per hour, and clips of modern tanks cruising along at 40 miles per hour. These modern juggernauts can fire their spent-uranium shells over a mile with pinpoint accuracy, day or night. Finally, the program features interviews with Gulf War tank crews.