Camp Harmony. A place to relax, swim in the river and stage epic water fights. A time to escape and admire the outdoors. That was how Heath Lambert wanted to spend his summer. But nobody told him that he would spend it running for his life. Almost every animal in the surrounding forest - thousands of them, from squirrels to wolves - has gone on the attack. Even the camp's horses! If Heath and his friends are to stay alive, they have only one place to go. But getting there is just half the battle.