Jilted on her wedding day, tour guide Abigail Warren is saved from an accidental plummet over Niagara Falls by her former boyfriend. When the photo of captain Lyman Roberts rescuing a beautiful bride goes viral, Abigail and Lyman agree to pose as a “real life” couple for a local tourism campaign. But Abigail isn’t ready to trust her heart to anyone—especially the guy who never saw Niagara Falls as home. When their summer of fake dating starts feeling surprisingly genuine, will Abigail and Lyman give their relationship a real second chance?