William James Ames came from a wealthy and famous household of time travelers in the 15th century. He has a perfect life, perfect family and a perfect girlfriend named Abigail Morgan, a simple minded damsel-in-distress. On the night of their engagement, he accidentally opened the legendary Aeon Book and mysteriously woke up in the present day New York. He then met Avery Woods, the girl who looked exactly like the love of his life. But she is foul-mouthed, rebellious and straight-forwarded, the exact opposite of Abigail. He is on a quest to find the real Aeon Book before time runs out or he will be stuck there forever, but of course, with the help of Avery.