When Sabrina Grimm wakes up from a coma of two years and returns home, she finds that she has completely forgotten about her family history. After relearning her past, she becomes fascinated with it, contrary to her previous indifference to it. Only, with this new interest comes a new unhealthy obsession with magic. During all of this, a letter is sent, threatening the Grimm family, signed by Daniel's, a friend of the Grimms, own mother. The Grimms then decide to investigate their first case in years, searching for Daniel's mother. Soon, they begin to uncover the layers of a mystery behind the Kingdom of Faerie, old friends, and old enemies as they set out on a journey to find Sabrina's grandmother who suddenly vanished once they reached New York.