Shadowhunters: The Mortal Instruments is an American fantasy TV show based on the book series City of Bones: The Mortal Instruments by Cassandra Clare. There is no connection to the feature film The Mortal Instruments: City of Bones, which was released in 2013. The ABC Family TV series premiered on on the 13th of January 2016 and is available on Netflix. The first season is set to consist of 13 episodes.