There are no do-overs in life...or are there? If you had a chance to re-do part of your life, would you? Even if it meant dying earlier? That's the decision Tom Morgan and Larry Pace must make when they are approached by a time traveling time salesman. Complete opposites, both men are drawn to the idea for the same reason: to save someone's life. But is that even possible? Can the past be changed? Should the past be changed? Add to that the problem that it's very addictive, like a dangerous drug. Each trip back in time shortens life.