By War and By God tells the traumatic, yet redeeming story of a small group of soldiers whose lives were forever shaped by war, but whose faith has led them back to Vietnam to love, serve, and care for the people of that beautiful land. Through first-person interviews, archival war footage, and present-day on-location filming, the stories of these amazing "Vets with a Mission" exemplify the good that can come from a handful of lives that are touched By War and By God.