After the events of Freddy vs. Jason, Freddy Krueger manipulates Jason Voorhees into retrieving the Necronomicon Ex-Mortis, which Freddy plans to use to revive himself and cause more carnage. Ash happens to have moved to Crystal Lake for the opening of a new Super Ultra Mega S-Mart, which serves as his cover while he keeps his own search for the Necronomicon alive. Once the triumvirate of terror meet, chaos ensues.