Below you can read big spoilers for Vampire Diaries episode 6 " Lost Girls ", spoilers are official. IN A FLASHBACK SEQUENCE, STEFAN REVEALS THE SALVATORE FAMILY HISTORY TO ELENA Elena demands that Stefan explain the frightening events that have been happening in Mystic Falls. In flashbacks, Stefan explains how his rivalry with Damon began. Back in the present, Damon impulsively takes control of Vicki’s future, and a confused and frightened Vicki runs away. Finally, Sheriff Forbes and Mayor Lockwood take steps to protect the town.