When Ashley's conventional 21st century life falls apart, she returns to England to write the book she shelved years ago, determined to take control of her life. Meanwhile, in 1377 Wiltshire, Thomas fights his family's desire that he become a priest and plots to chase his dream of knighthood instead. While Ashley and Thomas search for answers, Thomas suddenly appears in the modern day. Unable to communicate, his first encounter with Ashley ends with the police demanding his immigration papers. All Thomas wants is to return to the world he understands, but he and Ashley are drawn together again and again. How will they find the answers Thomas needs before the authorities close in without losing each other forever?