FBI agent Audrey Parker arrives in the small town of Haven, Maine to solve a murder and soon discovers the town's many secrets—which also hold the key to unlocking the mysteries of her lost past.

Al Shines, former king of the US race car track circuit, has a hard time starting his own team, once he's fired by his sponsor Robin Cates. Robin hired Al's immature daughter Kylie Shines instead. She resents Al's inevitable 'absence' as a widowed father, as well as the reigning champion, equally young but professionally vetted Kid Walker. Kylie tries to prove herself against Kid while having an on-off affair with him. Cates's marketing strategy dictates his intentions to manipulate Walker and both Shines racers.

During a blizzard in 1964, Dr. David Henry delivers his son Paul with the help of nurse Caroline. But when Henry realizes his wife is also carrying a girl with Down syndrome, he hands the second child over to Caroline without his wife's knowledge. Henry's fateful decision yields grave consequences for his family over the next 20 years.