Jackson Meyer has thrown himself into his role as an agent for Tempest, the shadowy division of the CIA that handles all time-travel related threats. Despite his heartbreak at losing the love of his life, Jackson has proved himself to be an excellent agent. However, all that changes when Holly - the girl he altered history to save - re-enters his life. And when Eyewall, an opposing division of the CIA, emerges, Jackson and his fellow agents find themselves under attack and on the run.