Plot summary
Damon and Elena try to get back her memories with no luck, Elena gives up and crosses the border but Damon grabs her in time that she does not die. Elena only remembers bits and pieces but not enough to love Damon again. Damon decides to let Elena go while dropping her off at her dorm. Stefan and Caroline need to get Tripp back from Enzo before the people who want Tripp back kill Caroline's mom. Enzo secretly turns Tripp into a vampire without Caroline or Stefan knowing. Tripp crosses the Mystic Falls border and dies, while Caroline gets her mom back.
Caroline sees that they hurt her mom and along with Stefan, they take Sheriff Forbes to the hospital and while waiting for her, Stefan and Caroline talk about what Enzo said earlier (that Caroline loved Stefan and how he did not notice). They talk and Stefan apologizes for not knowing, which gets Caroline mad. Liam tells Elena that he is close to knowing how the girl who was in the maze recovered so quickly, which makes Elena alarmed since it was her blood that made the girl healed.
Credits
Adapted from Wikipedia contributors, The Vampire Diaries season 6. HTML formatting and reference markers removed.