Margo begins to lose it as she realises that Casey and Gwen didn't make it down the hill with the rest of the teens. Tom holds it together until he talks to the Raven Lake police, who are treating the whole thing like a joke. Louis tries to explain to Maddie that he was not the killer, but is attacked by the slasher. Luke tells Holden about saving Kevin's life, but also tells his father about the insults Kevin hurled at him. Gwen and Will hole up in the cabin until hearing the siren, determined to get the officer's attention. Maddie flees from the slasher. Henry makes it clear to Jack that he will get Louis with or without his help, so Jack agrees to bring him along to Raven Lake. Luke returns to the lake shortly after the Oakdale authorities show up, and wonders where Jade is. Source: tv.com (thetvdb.com)