So the benevolent Scott McCall didn't take out The Benefactor's assassin Violet when he had the chance, but let's be clear -- in the coming episodes of "Teen Wolf," all bets are off.

In the mid-season trailer below, as a slew of killers continues to bear down on Lydia, Kira and Beacon Hills' many other supernatural creatures for paychecks, Derek finally decides to stand up and fight. And by the looks of things, kitsunes and banshees alike seem to be on board. But in the fight for survival, Scott appears to tap into total bloodlust, and we shudder at the notion that we're slowly losing our canvasser of justice to the dark side.

Either way, the gang will soon face total extermination, and as more and more killers sign on to make some dough, the blood will continue to spill. Judging by Mama McCall's scream, we're in for some heavy losses.

"Maybe we should all be running from Beacon Hills," Malia says as the walls start to cave in around her. "Running for our lives."

Well, we can't say we disagree with that!

Check out the trailer, and be sure to tune in to an all-new episode of "Teen Wolf" Monday night at 10/9c!