The first crew volunteers at the vast Imperial War Museum Duxford in England.

Relying on volunteer energy and minuscule budgets, they're aiming to get their Centurion finished in 10 years.

At the US Army Ordnance Museum, you will see a crack team restore a rusted beat up machine that has been left on the sidelines since 1944.

Every year on July 4, Joe and his team join a local Independence Day parade.

But he's got an impossible mission on his hands – rebuild a Cold War vehicle without enough money or time and with only part-time help from his friends on weekends.