The story tells about a shrewd and capable FBI agent Audrey Parker (played by Emily Rose) who came to a small town called "Haven" in Maine (a state in the northeastern corner of the United States) on duty. Soon after arriving in the town, she was surprised to find that the town was protected by a mysterious force, which made people here regard it as a refuge and they were also affected by a supernatural force. When she was surprised to find that local citizens used a sleep-like ability to transmit information, Audrey began to investigate the matter and discovered some amazing secrets about the town of "Haven": this included a connection with this unusual town surrounding her. The only other people who could help Audrey were local police officer Nathan Wuornos (played by Lucas Bryant) who eventually became Audrey's partner and a mysterious and charming man named Duke Crocker (played by Eric Balfour).