Gabriel Valack (Steven Brand) takes things into his own hands in this sneak peek at this week’s's Teen Wolf, given exclusively to JustJaredJr.com.

He takes out a freaky mask at Eichen House and puts it on Nurse Cross (Mandy Levin), seemingly unleashing a new Dread Doctor!

“You ever actually put that thing on someone?” she asks.

“Not in years,” he says.

“How do you know it still works?” she asks. Bad, bad, question. Watch what happens below!

And don’t forget – Teen Wolf airs Tuesdays @ 9/8c on MTV!



Teen Wolf “Amplification” Exclusive Clip