Humanity is counting on Grace to let her son die. It’s the end of the 21st century, and Grace's son, Jordan, has contracted a fatal soul-stealing disease, Metagenesis. Desperate to save him, Grace volunteers for an unapproved trial involving time travel. Leaving Jordan with her estranged husband, Grace and her best friend, Kay, embark on a journey to Las Vegas, circa 2000, racing against time in search of the cure. But the hunt proves to be more than they bargained for. Mysterious assassins lurk around every corner, and someone is sabotaging their mission, leading Grace to a gruesome discovery. The sinister truth behind the trial forces Grace to make a painful decision—with her son’s life hanging in the balance. If she saves him, she triggers widespread Metagenesis, sealing the fate of the human race with a new plague. Her other choice is to let Jordan die.