Split Second

"Nathan Wexler is a brilliant physicist who thinks he's found a way to send matter a split second back into the past. But before he can confirm his findings, he and his wife-to-be, Jenna Morrison, find themselves in a battle for their very lives. Because while time travel to an instant earlier seems useless, Jenna comes to learn that no capability in history has ever been more profound or far-reaching" -- back cover.