 Armed with a metal detector and a stack of treasure-hunting books, Charlie soon finds reason to believe that the gold resides underneath the local Costco, and encourages Miranda to get a job there so that they can plan a way to excavate after hours.Initially skeptical, Miranda soon finds herself joining in Charlie's questionable antics in an effort to give him one last shot at accomplishing his dreams.After becoming involved with some swingers, Miranda then helps Charlie break into the Costco.