The movie started well with the tension building and me not knowing which way it would go. Then it fell apart completely when Andrew got his gun. Why wouldn't he shoot the people who attacked his family and were forcing him to sacrifice his family member? First he did not shoot the nurse when she attacked him at the car. Then he did not shoot the big guy and of course the big guy wrestled the gun away. Idiotic and illogical. Another point is that the group never made a convincing argument that the world was ending and the sacrifice was the solution. All in all, a bad movie.