Enter the quaint world of a Minnesota river town, where mystery and intrigue abound and romance and redemption come when least expected. Pinkerton detective Constance Ward must take on an alias requiring her to marry a complete stranger. Pinkerton agent Alexander Bixby is sent to find a ring of counterfeiters. He expects danger, but not the vivacious Amanda Mason. Widow Libby Ward's old flame returns, old passions ignite, and old differences surface right in the middle of rumors of buried treasure. As these independent souls step into uncertainty and unravel mysteries, can love find the key to unlock their hearts?