Henry Rawlings is a former confederate soldier and stagecoach robber. Gravely injured, he’s found and rescued by the Wilson family in a remote Montana valley. The Wilson family’s home, however, is more than it seems; it’s a marooned ship that can travel through dimensions. With no family of his own, Henry grows loyal to the Wilson family and vows to protect them.

The Wilsons discover Henry is a gunfighter like no other. Is he too dangerous, or is he exactly what they need to survive in this perilous time?

Meanwhile, in 1986, a teenage boy named Andy Banks suddenly unlocks memories of a future he hasn’t yet lived. At first, he just wants to have a better high school experience than he now remembers. He joins the football team, gets in a fight, and makes new friends. But he knows he has a responsibility to save the Wilsons, even though he’s never technically met them.

Andy must avoid a mysterious stalker who desperately wants to stop him and his friends, while Henry must battle an army of ex-soldiers, including some from his own past.