The only spoiler I can give is this: the movie sucks! The acting, the plot and the cliché of Veterans returning home is lame. Whoever the military adviser was, should never work on a military themed movie again. Although the subject matter is important, it was handled in a format that won't help people understand but merely mock them. If you want to watch an excellent depiction of PTSD, The Best Years of Our Lives is quite spot on. It was one of the first movies to deal with, what is now known as PTSD, however it's ending which suggests that normalcy will happen only after you find a love interest gives it an easy out.
Review of Home of the Brave
