14yearold heath lambert is spending his summer at camp harmony in the picturesque cascade mountain valley its the perfect place to enjoy the soothing calm of nature as he weighs a heavy decision the camp offers distractions his friends cricket and dunbar always up for trouble his reluctant crush on emily one half of the beautiful em em twins and hulking bullies thumper and floaties who are determined to make him their punching bag for the summer but no one rattles heath like his creepy cabin mate will stringer brilliant cold and calculating will views the world as one big chess game and hes always three moves ahead of everyone else heath soon learns theres a much bigger threat to contend with somethings wrong with the animals in the surrounding forest a darkness is spreading driving them mad with rage wolves bears mountain lionseven the chipmunks are infected spurred on in droves by one horrific goal hunt and kill every human they find heath and a ragtag band of campers are faced with a choice follow wills lead and possibly survive or follow the camp staff and die but how do you trust a leader when you suspect hes more dangerous than the animals youre running fromheath came to camp harmony to be surrounded by nature hes about to get his wish