A disease that turns people into zombies has been cured. Society discriminates against the once-infected zombies, as do their own families, which causes social issues to arise. This leads to militant government interference.

U.S. Navy SEAL Chris Kyle takes his sole mission—protect his comrades—to heart and becomes one of the most lethal snipers in American history. His pinpoint accuracy not only saves countless lives but also makes him a prime target of insurgents. Despite grave danger and his struggle to be a good husband and father to his family back in the States, Kyle serves four tours of duty in Iraq. However, when he finally returns home, he finds that he cannot leave the war behind.

A disease that turns people into zombies has been cured. The once-infected zombies are discriminated against by society and their own families, which causes social issues to arise. This leads to militant government interference.