The saga of the Class of 05 intensifies when they emerge from the sanctuary of the Cave. Entering a beautiful green forest that did not exist the night before, they once again encounter survivalists who are hell bent on eating them. They must struggle to survive in this new world that is full of danger and unwanted guests and ultimately solve the mystery of how they got there. Little do they realize their survival may depend on aliens whom the government has entered into a secret alliance. But, will they be betrayed by them in their quest to discover The Fifth World.