22-year-old Jess Valenzuela’s life is turned upside down when she meets a mysterious stranger who holds a clue to an ancient treasure linked to her long- dead father. With the help of her friend Tasha, Jess uses her knack for puzzle-solving to try and crack the clue. But they both soon realize they’re in way over their heads when Billie—a ruthless black-market antiquities dealer—joins the hunt.