This is a love story that could only happen because of an accident of time travel. Tom and Penny belong to a world so perfect there's no war, no poverty, no under-ripe avocados. But when something awful happens to Penny, and Tom tries to make it right, he accidentally destroys everything, waking up in our broken, dysfunctional world. Only here, Penny and Tom have a second chance. Should Tom go back to his brilliant but loveless existence, or risk everything by staying in our messy, complicated world for his one and only chance at true love?