Death Machine

"The Death Machine" is the sequel to "The Final Charge," the story of Mike, Ray, and Gordon, three Civil War reenactors, who accidentally time traveled to Gettysburg in July, 1863. They took part in Pickett's Charge and, at the end, when they made it home, they discovered they had somehow changed history.

The characters find themselves in a wonderful new world, but underneath its facade, there exists an evil that continues to grow. One of the characters is murdered, and the others risk their lives, traveling through time again to try to reset the timeline. This involves stopping a secret weapon that could foil their plans.