The Yukon Quest is the most gruelling and dangerous sled dog race in the world. It?s a two-week, 1,609 Km race through frozen, barren landscapes on the roof of the world. Nearly half the mushers freeze up under the pressure ? and turn back. Poorly prepared, under-slept, frostbitten or scared, mushers collapse from exhaustion or succumb to dehydration. Underdog tells a story of a young Jamaican who is taking part in the world?s toughest dog sled race, the Yukon Quest. This documentary will follow Newton as he confronts killer conditions and the most brutal realities imaginable.