Seth Gilles, a 27-year old public school teacher, has a secret: he can travel back in time, and influence the subsequent events. However, it comes with a price. For each of his attempts to change the timeline, he ends up suffering for it. Because of that condition, Seth vows never to use it unless necessary. Then, one day in March, he meets a girl named Stephanie. With her cheerful and bubbly personality, his life is never the same again...