Sam Davidson and Yael Tygiel break down Season 3 episode 18 of Shadowhunters "The Beast Within" in which A demon outbreak in New York City on Halloween becomes a top priority at the Institute, but as the Shadowhunters hunt the demons, Jace becomes more worried about Clary; Alec juggles the outbreak with his deep concern about Magnus' depression.

ABOUT SHADOWHUNTERS:

Shadowhunters 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 was also produced byConstantin Film. The show received a straight-to-series order on March 30, 2015,[1] and premiered on January 12, 2016, on Freeform.

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