Hunter McGill accidently discovers that he can time travel to the past-an ability that proves at times both humiliating and fascinating. After getting the hang of temporal manipulation, he visits those places and events in which he had always been interested: the Old West, Renaissance Italy, the Stone Age, and the Roaring Twenties, as well as other compelling timescapes. But his newfound gift soon turns into much more than he bargains for, to include altercations with apex predators, bloodthirsty gangsters, and even maniacal geniuses. Relying on his own elite military training and the unconditional support of his wife, Maggie, Hunter learns to navigate the space-time continuum as he jumps into and out of one adventure after another. But then he gets an unexpected visitor from the future and learns that time doesn't just heal all wounds-it can cause them too.