When a failed attempt on Allison Cade's life thrusts the theoretical physicist reluctantly into a century's long conspiracy, she must rely on Blake McDaniel and his lethal team of Delta Force Operators from Temporal Operations Command. One step behind the Odessa Foundation's Asset Procurement Team, Allison and McDaniel desperately work to repair a fractured timeline by stopping a legendary super-weapon falling into enemy hands. Failure could irrevocably change the course of history.