While racing her dogs in the Iditarod, Kara proves that the greatest win is something other than having her team come in first. They weaved on and off the trail, paws pounding the hard-packed snow. The team had no driver. Kara reached for the snow hook. It would hold her own team down. But it was too late. In a flash, her dogs sprinted off without her. Now there were two driverless teams out of control.