Revolutionary War re-enactor Mary Banvard must travel to West Point during a thunder storm to authenticate papers concerning Benedict Arnold's betrayal of West Point. Poor visibility causes a terrible car accident​, and she blacks out. When a masculine voice awakens her, she discovers everyone around her is wearing Colonial clothes. Odd. Who is this guy with the queue and the glasses who looks so worried? Robert Townsend looks like a Quaker shopkeeper, but he is Culper, Jr., General George Washington's most important spy. When Lady Mary Banvard, his fiancée, awakens following a carriage accident, she begins ranting about missing papers and traveling through Time. Together Mary and Robert stumble upon a threat to their lives, their happiness, and the security of American generations to come.