When Damon tries to remind Stefan about him and his past, Stefan has a problem with restraining.
When Stefan awakes following Qetsiyah's spell, he is suffering from amnesia. Qetsiyah performs a spell on Stefan, connecting him to Silas and ridding Silas of his psychic powers. When Damon finds Stefan, Qetsiyah warns him that Stefan and Elena are destined and he is just in the way. Nadia kidnaps Katherine and goes to Silas to give her but she realizes that he is using her. Meanwhile, Nadia uses magic on Matt to contact Gregor (whom she killed to fool Silas) and uses him to get information about Katherine's whereabouts from Elena. Qetsiyah continues to divulge her plans of destroying Silas by using Stefan to make him weaker. Qetsiyah reveals that she was originally to marry Silas and made the spell for him, when he betrayed her to take the immortality spell with the woman he really loved, Qetsiyah's handmaiden, Amara, she created the cure and killed Amara. Qetsiyah has Stefan hostage and tells her version of how Silas became immortal. Damon and Elena, alongside Katherine go to a bar to search for Stefan where they find the waitress who was bitten by Stefan.
When Elena tells Damon that she had a dream about Stefan in a bar, Katherine says she had them too. Stefan finally surfaces after three months being locked in a safe underwater in the quarry. Elena, Damon and Sheriff Forbes find Stefan's safe, but instead of Stefan, they find a dead body, meaning Stefan was very hungry and could have turned off his humanity. Elena tells Damon that even though Stefan will be there she will still love him. She finds out the truth about Stefan and temporarily drops out of college to go look for him. Elena, under the control of Silas, ties Damon up and attempts to kill him, but by focusing on the negative feeling she's had about Stefan all summer she returns to normal before she can carry out Silas' wishes. Caroline bonds with Jesse over their bad relationships. Jeremy and Matt go on the run with Katherine with Silas on their tail. The autopsy report reveals that a mysterious professor covered up the true cause of death. At Whittemore, Elena and Caroline try to figure out how Megan knew Elena's father and why her murder was covered up by the school. Underwater, Stefan has hallucinations of Damon telling him to turn off his humanity in order to get out. Stefan is still in the locker underwater and is hallucinating while fighting the urge to turn off his humanity. Matt says goodbye to Rebekah after their summer traveling together and runs into an old friend named Nadia. Katherine has trouble adjusting to being human again and needs Damon's help after Silas comes after her and also her other enemies who are after her as she is vulnerable. Bonnie, still dead doesn't want anyone to know that she is dead and has Jeremy masquerade as her. After an altercation at school, he is expelled. Damon is left to take care of Jeremy, who has trouble adjusting back into school after telling everyone he faked his own death. With her relationship with Damon still intact, Elena begins her freshman year of college with Caroline at Whitmore College, excited about the chance to have a normal human experience, but their good time ends badly when their roommate is brutally murdered by what seems to be another vampire. See also: List of The Vampire Diaries episodes No.