When all six of the ponies and the Cutie Mark Crusaders go on a camping trip Rainbow Dash tells a story of werewolf's in the woods, and she says it's just an old pony tale, until the Cutie Mark Crusaders run into one while looking for firewood, but when Applejack jumps in to save them she takes the bite. What will happen when the others find out? Will they like her anymore? How will she live like this?