A father races through time to save his family and escape a killer cyborg in the final installment of this thrilling sci-fi trilogy. Andrew Frost has all the time in the world to save his wife and daughter-provided he doesn't die himself. Overcome with grief following their murders, Andrew discovers he has the chance to fix everything via time travel. Before he knows it, he's opening portals, meeting alternate versions of himself, using nanotechnology to heal his injuries, and bickering nonstop with his know-it-all AI assistant: Tim, the talking dog. A few lost limbs later, Andrew may have finally found a timeline in which his family is still alive. His daughter-well, a grownup, alternate version of her-has made a breakthrough in her time-travel research that could change everything. All Andrew and Tim need to do is collect her notes. The trouble is, they have a vengeful Clockman on their tail. Relentlessly chasing them throughout the time stream, Retnuh Ordune is ready for a fight to the death. No matter where they go, he follows. And he'll do whatever it takes to eliminate Andrew, even if that means wiping out a timeline or two in the process . . .