EXCLUSIVE: 'Darkness' Comes to 'Teen Wolf'


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"Darkness is coming" in this exclusive new teaser for Teen Wolf's upcoming episode "Mischief Night," in which the gang must step in when a convicted murderer brought to Beacon Hills Hospital for surgery escapes on the night before Halloween.

The latest episode of the MTV hit series promises to be a terrifying one, with Lydia (Holland Roden) letting out a particularly ear piercing scream and Derek (Tyler Hoechlin) enduring a terrifying claw to the neck.

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Watch the clip for a preview of all the hair-raising action!

Related: 7 Best Quotes from the 'Teen Wolf' Set

Mischief Night airs on January 20, at 10 PM/ET on MTV.