In August of 1999, May Mendoza loses her mother Amanda. While settling her affairs, May finds a long-forgotten pledge signed three decades before by some of Amanda's friends, who call themselves the Pinon Nuts, to reunite for the millennial New Year's Eve. She also finds a letter to her mother from Jason, one of the friends who has been missing since he threatened President Nixon in 1970, that seems to imply that May's father was not who she thought...