Teen Wolf, Season 5

Mason:
Look, Scott's going to have a plan. They always do. A couple of weeks ago, he brought Hayden in here with cell phone jammers to block the frequency of the Dread Doctors--

[Suddenly, Mason has a dawning realization and gasps in shock]

Mason:
Follow me. It's frequency-- every time the Beast shows up. Liam and Hayden saw it at the cell transmission towers. The attack downtown happened right near the Radio-Astronomy Observatory. Uh, Deaton was attacked by the Beast at an Army base which has huge radar arrays...

Corey:
Still not getting it.

Mason:
The Beast always shows up near a transmission source. What if that's how the Dread Doctors are doing it? By broadcasting a high-frequency transmission?

Corey:
So, we should be looking for some kind of transmission?

Mason:
We don't have to look. The local news always covers the game. There could be two, maybe three vans-- all of them transmitting.

Corey:
[horrified] Are you saying that thing's going to be out there tonight?

Mason:
I'm saying... People are going to die. A lot of people.