Tank Overhaul

Two crews work on British designed Centurions. The first crew volunteers at the Imperial War Museum in Duxford, England with all the time, spare parts, and manpower they need. The second crew toils in a small Canadian museum relying on minuscule budgets.

One of the largest tank destroyers ever built, the Elephant is possibly the rarest surviving tank from World War II. Only 90 were built and only 2 survive. Watch a crack team restore a rusted, beat up machine that's been left on the sidelines since 1944.

Joe Garbarino, CEO of Marin Sanitation, has a passion for collecting military vehicles, including arguably the best light tank of WWII, the M-24 Chaffee. Somewhere in its massive hull, the M-24 sprung a leak, and might not make the annual July 4th parade.

Greg Taylor, one of the world's most experienced tank restoration experts, has an impossible mission on his hands: to rebuild a BMP, a Cold War tank designed to protect soldiers from radioactive fallout, without enough money or time