Operation Skyfall (Challenge 16: It's All in the Name)

What was once a peaceful day on Earth has turned dark. An extraterrestrial race in form of virulent vapors has begun to spread its way through the world. The skies have been poisoned. But one young soldier may have the solution. The only solution that could dictates mankind's permanent foothold on this planet or risk the possible, complete human extinction.

This is a entry of the ScieneFiction Competition, Challenge 16: It's All in the Name.

Hope you enjoy.