A man named Elias Rettner is born with a rare power inherited from his father - not time travel, but the ability to travel between timelines. His father's secret past as a time traveler, and a coming catastrophe threatening the collapse of all universes (known as "The Convergence"), set him on a journey across countless realities identified only by numbers like 667 and 424. Elias must find the point of collapse - and decide whether to save all of existence or rewrite destiny itself.