Each year the best tank crews in the Lord Strathconas, based in Edmonton Alberta, hold a tank competition with the US National Guard. The Canadian teams are using older Leopard I tanks while the American team is using M1A1 Abram tanks which have been proven on the battlefields of the Persian Gulf. In four of the last five years, the Canadian teams have won. Can they do it again? We join four tank team crews from both Canada and the USA as they go head-to-head in this explosive and visually stimulating battle competition in Boise, Idaho.