If Jurassic Park had more kissing and Groundhog Day had more explosions.

Dr. Grace Carson finally has everything she’s worked for: a coveted time travel assignment and a chance to study dinosaurs in their natural habitat. What she doesn’t have? A functioning relationship. After surviving a deadly mission together, she thought she could trust time agent Ben Nakamura. With her life and with her heart. But when he’s assigned a top-secret mission, Grace catches him in a huge lie and decides to end things.

The next day, Ben is mortally wounded and confesses he’s been using an experimental time looper, reliving the same day every time he dies. For over a year of loops, he’s been trying to save Grace and their team. It's broken him.

Desperate to save him, Grace activates the looper herself. Now she’s the one trapped in a deadly loop, and Ben has no memory of what they’ve shared. Loop after loop, she watches him risk everything for her. Loop after loop, she falls harder than before.

But each loop is more dangerous than the last, and time is running out. Grace is ready to fight for the future they could have—she’ll just have to survive the never-ending day long enough to reach it.