It's been approximately 4 years since you died. Everyone you knew in Gravity Falls went their separate ways after you're funeral and nothing has been the same for the beloved pines family since the loss of their family member, even Bill Cipher the all powerful knowing Demon has been having a difficult time coping the loss of the only person he's ever loved. But all that will soon change when he's paid a visit in his new home by beings from a alternate universe.