TEXT: [PREVIOUSLY_ON] Scott: We agreed to give each other the summer... no calls, no texts. How many are there? Derek: A pack of 'em. An Alpha pack. They have Boyd and Erica, and I hear there's a leader. He's called Deucalion. Braeden: Quiet. You hold on tight. You're Allison, right? Where's Scott? Allison: Lydia, look. Lydia: I don't know. It doesn't look like much to me. Allison: It's a pattern. It means something. Lydia: You really think Scott's gonna know what it is? Allison: No, but he might know someone who does. Lydia: How are you so sure that it means anything at all? Allison: Because that girl wasn't just looking for Scott. It's like she needed to find him. Like she had to. And that means something. Stiles: What? Scott: What, what do you mean, "what"? Stiles: I mean "what," and you know what. Scott: "What" what? Stiles: That look you were giving. Scott: I didn't give a look. Stiles: Oh, there was a distinct look, Scott. Scott: What look? Stiles: The look that says that the last thing you feel like doing right now is going to a party. Scott: It's not that. It just seems weird going to a different high school's party. Stiles: What? Would you... [Groans] God, one drink, all right? You'll be fine. I went to nursery school with this girl, okay? She promised to introduce us to all of her friends. So tonight, no Allison, no Lydia. Tonight, we're moving on. Scott: You're right. Stiles: That's right I'm right. Scott: Moving on. Stiles: Onward and upward. Scott: Let's do this. Stiles: That's what I'm talking about. Now look at me. Scott: Okay. Scott: How's my breath smell? Stiles: I'm not smelling your breath. Scott: Do you have any gum? Stil
SUMMARY:
Stiles' childhood friend, Heather, is attacked and goes missing. The guys help Isaac recover his memory, and it is revealed that he had found Boyd and another female werewolf being kept in an abandoned bank vault. However, Erica may already have been killed. When Derek and Scott break in to save them, Derek recognizes the other female werewolf as his younger sister Cora, presumed killed in the Hale house fire. Stiles and Peter discover that Boyd and Cora had been kept from transforming for 3 months. Wild and bloodthirsty, Boyd and Cora almost kill Derek and Scott until Allison saves them by setting the wolves free.