After returning home from the Civil War with a dark cloud of failure hanging over their heads, the two brothers, with no family, no prospects, and only their horsemanship and marksmanship to rely on, are desperate for a way out – until a chance encounter with a U.S. Marshal offers them an unexpected opportunity. Taking on the role of lawmen, they use their cavalry experience to track down a bank and train robber while trying to find their place in the rapidly changing world.