In 1705 England, Nell Jackson finds herself falsely accused of murder and fleeing with her sisters. To make ends meet, she resorts to highway robbery. With the help of her spirited and supernaturally gifted companion, a tiny sprite named Billy Blind, Nell comes to understand that her life of crime is not without purpose. She is destined to thwart a mystical conspiracy targeting the Queen of England, a mission far greater than she ever anticipated.