Teen Wolf's Scott McCall is terrified of becoming a monster, and Kate Argent may make him realize his fears as a Berserker.

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The True Alpha is haunted by the fine line between power and monstrosity, and Scott's (Tyler Posey) involuntary change into a Berserker could cause him to drastically tip the delicate balance.

"Season 4 is very specifically about how Scott can manage the monstrous side of his power while still retaining his humanity and morality," said series creator Jeff Davis, according to Assignment X. "His greatest fear is that he'll turn into the same kind of monster that Peter was in the first season. That he'll kill someone, whether by necessity or by giving too much to his animal side. This is why, even as an Alpha, he doesn't always win when he fights. He's holding back."

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Will Scott accidentally destroy someone from his pack, or will his pack injure him in their effort to take down Kate (Jill Wagner)? Find out more when Teen Wolf airs its season 4 finale on Monday at 10 p.m. ET. Click the video below to see a preview for "The Broken Spell."

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Teen Wolf, Television, MTV