Watch King & Country

During World War II, a British army private named Arthur Hamp is caught with his troop in a vicious battle at Passchendaele. After the smoke had cleared, Hamp discovers he was the only British survivor left standing. In mental shock, he decides he just wants to walk home from the battle. Along the way, he is found by British military police and promptly charged with desertion. At trial, Captain Hargreaves has been assigned the task of defending the man who the British brass are intent on convicting. When he realizes Hamp is nothing more than a victim, he becomes motivated to clear the soldier's name.