GH4: 90s' Halloween-(2024)

When Charlotte receives a 90s cellphone from her teacher as part of a class history project, she gets a call on the phone from a mysterious boy in the middle of a storm that night, and she and Olive are sent back to October 30th-1994. The next day, on Halloween, she gets more calls from the boy and learns he's dead. Can Charlotte and Olive solve this mystery and get back to 2024?