The challenge, taking place in the hometowns of the Carolina Panthers, Dallas Cowboys, New England Patriots and Washington Redskins, will test the limits of fans' loyalty in each of these four markets as they attempt to outlast fellow competitors by maintaining contact to a giant 20-foot inflatable team jersey. The last fan standing will be honored as their team's most dedicated supporter and win a pair of tickets to every 2008 Patriots regular-season home game.--Nina M. Lentini