Allison: Scott, I'm trying to break up with you. And I'm losing her. And they're not coming. Boyd: No, wait! But I have to. Chris: And a new crossbow. Chris: Gerard has twisted his way into Allison's head, the same way he did with Kate. Derek: A pack of them. Derek: Alphas. Derek: But why? Erica: What? Gerard: Mountain ash! Gerard: No. Gerard: That's true. He'll be an Alpha. If Jackson's a dog, he's turning rabid, and my father wouldn't let a rabid dog live. Isaac: Who is he? Jackson. Little while back, he tried to kill us all, and then we set him on fire, and Derek slashed his throat. Looks like what we've seen from Jackson is just the kanima's beta shape. Peter: An Alpha pack. Scott: Everyone said Gerard always had a plan. Scott: Peter and Lydia. Scott: What the hell is this? Stiles: Okay. Stiles: So you really think she's gonna come back to you? That has wings.
Plan: A: Stiles; Q: Who is kidnapped by Gerard? A: Boyd and Erica hostage; Q: Who does Gerard have hostage? A: Chris; Q: Who frees Boyd and Erica? A: Jackson's body; Q: What do Scott and Isaac take to Derek? A: Jackson; Q: Who is killed by Peter and Derek? A: a battle ensues; Q: What happens when Jackson turns into the Kanima? A: an Alpha werewolf; Q: What did Gerard plan to become to cure his cancer? A: Gerard's body; Q: Who rejects the bite of the Alpha werewolf? A: Gerard's cancer pills; Q: What did Scott replace with mountain ash? A: Peter; Q: Who reveals a pack of Alpha werewolves have come to town? A: a blue-eyed werewolf; Q: What does Jackson come back to life as? A: Allison; Q: Who breaks up with Scott? A: new danger; Q: What does Peter reveal a pack of Alpha werewolves have come to town, indicating? Summary: Stiles is kidnapped by Gerard, who also has Boyd and Erica hostage; Stiles escapes. Chris, realizing that Gerard is the true enemy, sets Boyd and Erica free, and helps Scott and Isaac take Jackson's body to Derek. Jackson turns into the Kanima, and a battle ensues. Gerard reveals he has cancer and had planned to cure himself by becoming an Alpha werewolf. However, when Gerard's body rejects the bite, Scott reveals he had replaced Gerard's cancer pills with mountain ash. Jackson is killed by Peter and Derek but comes back to life as a blue-eyed werewolf. Allison tearfully breaks up with Scott, but he assures her he'll wait. Peter reveals a pack of Alpha werewolves have come to town, indicating new danger. This Alpha pack captures Boyd and Erica as they flee.