The emotional effects of an extramarital relationship are explored when a married schoolteacher begins an affair with a waitress on Long Island. In the opener, Noah Solloway and his family visit Long Island where he connects with a local waitress.

Noah asks Alison to help him research the local culture for his novel, but their innocent tour of Montauk proves more dangerous than expected. Meanwhile, Cole takes a stand on behalf of his community; and Helen deals with business back in Brooklyn.