Grey Skies full movie online on FMovies. A group of old college friends reunite to relive their glory days by renting a beautiful cabin in the woods. As the sun sets on their first day in the cabin, bright flashes of light announce the arrival of mysterious creatures. These friends will have to outwit a force that is both inhuman and extremely intelligent in order to survive. The outcome will shock and amaze you as we come to realize... we are not alone in the universe.