When Bill returns he has only one goal revenge on the pines twins. But the cost of the that revenge is the last of his power. So if he does get his revenge then he will be a powerless human forever. Dipper and Mabel have just come back to Gravity Falls after two years but, sadly the circumstances are much worse then last time their parents have died in a car crash so the duo decide to return to their true home. But by doing so will they be torn apart .......forever. I DO NOT OWN GRATIVY FALLS OR ANY OF ITS CHARACTERS!!!!!!!!