TEXT: MAN: Previously on Teen Wolf... That was supposed to be locked. Stiles: What are those? LYDIA: Atomic numbers. Kira. I'm gonna take your picture. Proof of our time here together. (ISAAC SCREAMING) ALLISON: Isaac! CHRIS: Isaac, open up! BOY: Yeah! (LAUGHING) (WIND HOWLING) (SHIVERING) (BANGING ON DOOR) ALLISON: Isaac? (DOOR OPENS) ALLISON: Isaac! He's freezing. Dad, he's like ice. CHRIS: Isaac, look at me. Isaac. ALLISON: What's happening to him? CHRIS: Isaac, come on. Isaac, listen. You have to turn. Look at me. You need to trigger it. Come on. Turn! Turn! (HITTING HIM) CHRIS: Turn! (GROWLING) ISAAC: Did you see them? ALLISON: Who? ISAAC: There were five of them. They wore black. I couldn't... I couldn't see their faces. They were covered. ALLISON: What do you mean? Like masks? ISAAC: One of them... I could see his eyes. They were greenish-yellow. Like a... Like a firefly. CHRIS: Security system wasn't triggered. ALLISON: Then how did they get in? ISAAC: They didn't. It was like they came out of the shadows. ALLISON: Do you know what that means? Dad? CHRIS: Um... I'm not sure. Listen, the two of you... I need you to keep this quiet for a few hours. (SNIFFLING) ISAAC: From everyone? CHRIS: Just 24 hours. (WHISPERING) ALLISON: They could've killed him, Dad. ARGENT: But they didn't. And I think there's a reason why. I think they might have been after me. (MUSIC PLAYING) AGENT MCCALL: So when did you get there? Stiles: At the same time. AGENT MCCALL: At the same time
SUMMARY:
Isaac describes the hooded figures that attacked him to Allison and her father. Kira reveals to Scott that her body emanates a glowing aura when a photo is taken of her, and with the help of Stiles, the two break into the Sheriff's office and erase similar photos from Kira's cell phone. Danny and Ethan throw a Halloween party in Derek's empty loft. During the party, Scott realizes that Kira's "aura" resembles a fox, and Allison discovers what appears to be a reverse number "5" mark behind Isaac's ear. Ethan and Lydia are also attacked by the hooded figures and marked the same way. Stiles discovers that his handwriting matches the coded message written on the chalk-board, instructing Barrow to kill Kira.