Focusing on Herold's struggle with the Veterans Administration and city agencies to find the help he needs, When I Came Home reveals a failing system and exposes the "second war" that many veterans must fight after they return home from war. At his breaking point, Herold meets fellow vet Paul Rieckhoff, founder of the country's largest veteran advocacy organization. What follows is a media blitz that helps to transform Herold from homeless vet into the leader of a new movement.