In an undisclosed year, young 10 year olds Michael Myers and Sean Carver are taken by a mysterious stranger only known as the Black Forest Killer. Michael's older brother Daniel blames Judith for their kidnapping as she was supposed to be watching them, and Laurie and Rachel were witnesses to the whole ordeal but powerless to stop him. Ten years later, Laurie and Rachel are in high school and the latter is still traumatized from the event and still has a passionate hatred for Halloween. Daniel is now a homicide detective and is partnered with Dr. Sam Loomis, an FBI analyst to investigate a strange murder at the abandoned Smith's Grove Sanitarium. It is soon revealed that a Shape has returned to Haddonfield, and it might be one of the kids that was taken that fateful Halloween night...
