WWII American Army Medic Desmond T. Doss, who served during the Battle of Okinawa, refuses to kill people and becomes the first Conscientious Objector in American history to receive the Congressional Medal of Honor.

We always knew they were coming back. Using recovered alien technology, the nations of Earth have collaborated on an immense defense program to protect the planet. But nothing can prepare us for the aliens’ advanced and unprecedented force. Only the ingenuity of a few brave men and women can bring our world back from the brink of extinction.