Season 2 started last week, airing Sundays at 9pm on National Geographic. Still the same concept of a 60 hour trek through wilderness, if you don't make it in 60 hours, your out, 11 legs of the race. This time, there are 4 teams of 3 (instead of 12 individuals). Also, some contestants are not from Alaska. The teams are: Endurance Athletes (includes youngest Iditarod champion and returning contestant Dallas Seavey), Military (none of the team members are from Alaska), Mountaineers (includes returning contestant Marty, all 3 team members are from Alaska), and Woodsmen (includes Tina Scheer from Survivor: Exile Island).