Watch Shadowhunters Live Streaming Online, Shadowhunters Live, Live stream link here For all you Shadowhunters without cable, Shadowhunters online for free. Get the latest Shadowhunters TV Shows, seasons, episodes, news and more. Shadowhunters Season Episode Online, Shadowhunters online streaming, watch Shadowhunters mobile. Shadowhunters (also known as Shadowhunters: The Mortal Instruments) is an American fantasy television series based on The Mortal Instruments by Cassandra Clare, and developed for television by Ed Decter. It is the second adaptation of the novel series, after the 2013 film The Mortal Instruments: City of Bones, which like Shadowhunters was produced by Constantin Film.