Electra McFly's timeline is dependent on the following: * Buford killing the blacksmith (which may or may not be Doc Brown), and getting arrested for murder as a result * Either ensuring young Biff receives the almanac or George McFly doesn't kiss Lorraine in order for Lorraine to marry Biff Tannen. * Marty avoiding the car crash in order for his "Fired Up" greatest hits album to go platinum.