In an attempt to bring some fun back into their lives, Elena persuades Caroline to meet her at the swimming hole where she plans to introduce her to Liam (recurring guest star Marco James – The Client List). Tyler, still working on controlling his anger issues, asks Liv (recurring guest star Penelope Mitchell – Hemlock Grove) for a favor and is surprised when she makes an unexpected confession. Stefan arrives back in Mystic Falls looking for Enzo and is caught off guard when he notices a strange change in Elena. Meanwhile, at the lake, Enzo's actions cause Matt to make a startling revelation, and Jeremy makes a discovery about the anti-magic spell that could potentially put Elena's life in danger. Elsewhere, Damon and Bonnie stumble upon clues that lead them to believe they're not alone.