Episode
The Vampire Diaries: Know Thy Enemy
Overview
Elena and Alaric both lash out at John when Isobel’s unexpected arrival leaves Jenna devastated. Bonnie works with Damon and Jeremy to find the spell they’ll need to harness her ancestors’ power. A heartbroken Caroline doesn’t know what to do about Matt. Stefan and Damon realize they have a new secret weapon.
Details
- Series
- The Vampire Diaries
- Season
- Season 2
- Episode
- Episode 17
- Air date
- 2011-04-07
- Runtime
- 43 min
Episode context
Know Thy Enemy is Episode 17 in Season 2 of The Vampire Diaries. It aired on 2011-04-07. The runtime is 43 min.
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Episode 16: The House Guest
Katherine’s mind games are getting on everyone’s nerves, but Damon, Stefan and Elena realize that her knowledge of Mystic Falls history will help them stay alive. Frustrated with her relationship with Matt, Caroline finds a new way to get his attention. Alaric makes a surprising confession to Jenna, and Katherine makes a different kind of confession to Damon. Stefan and Bonnie try to convince Jonas and Luka that they should all be working together, but Jonas’ lack of trust leads to a violent and fiery confrontation.
Episode 18: The Last Dance
As the high school prepares to throw a “1960s Decade Dance,” Elena starts receiving disturbing messages from Klaus via an unusual source. Bonnie tries to reassure Jeremy that she is strong enough to help Elena, but a worried Jeremy asks Stefan for advice. Caroline talks Matt into taking her to the dance. Expecting Klaus to show up at the dance, Damon and Alaric attend as chaperones, but Klaus is playing a complicated game that keeps them on edge. Finally, Damon comes up with a new plan of action that shocks and upsets everyone.
More episodes from this season
Episode 15: The Dinner Party
Stefan tells Elena about a dark time in his history and the surprising person whose influence changed everything. After getting the truth out of Luka, Jonas makes his feelings clear to Bonnie and Jeremy. Trying to catch Elijah off-guard, Damon arranges a dinner party for him with Jenna, Alaric and Andie, but last-minute information throws Damon’s plan into chaos.
Episode 19: Klaus
Stefan and Damon are furious when they discover that Elena has defied them both to make a new ally and take control of the plan to out-maneuver Klaus. Disagreement over how to protect Elena leads to growing tension between the Salvatore brothers. Meanwhile, Stefan has his hands full trying to keep a confused and frightened Jenna safe. Flashbacks to 1491 reveal Katherine’s introduction to Elijah and Klaus, along with the origin of the moonstone curse. Elena learns shocking new information about Klaus’ motives.
Episode 14: Crying Wolf
Stefan and Elena get away for what they hope will be a romantic weekend at the Gilbert family lake house, not realizing that they’ve been followed. Jenna starts to worry that Alaric isn’t being honest with her. Jules explains the importance of the sun and moon curse to Tyler, but leaves out an important detail. Damon attends a tea at the Historical Society in order to talk to Elijah, but Elijah isn’t giving up any secrets. With help from Caroline and Jeremy, Bonnie uses deceptive measures to get shocking new information out of Luka. Finally, Tyler offers Matt some relationship advice.
Episode 20: The Last Day
Damon is willing to go to extraordinary lengths to prevent Elena from being a victim of Klaus’ plan to break the curse. Damon’s actions put him at terrible odds with Stefan and the tension that started brewing between the brothers over their differing opinions of how to help save Elena’s life blows up into full-scale conflict. Tyler returns to Mystic Falls after receiving a disturbing phone call. With the full moon marking the arrival of the sacrifice ritual, Stefan and Elena spend a romantic day together — afraid it might be their last.
Episode 13: Daddy Issues
Johnathan Gilbert’s return to Mystic Falls comes as an unhappy surprise to Elena, Jenna and Damon. Caroline lets Stefan know about her conversation with Tyler, and Stefan does his best to reach out to a confused and conflicted Tyler. Jeremy comforts Bonnie after her disturbing conversation with Jonas... When Jules takes a hostage, the situation quickly escalates into a violent confrontation.
Episode 21: The Sun Also Rises
With the arrival of the full moon, Elena tries to prepare for whatever Klaus has planned and Tyler faces his second transformation. The terrifying events quickly spin out of control, despite an unexpected act of courage. Finally, Damon admits the truth to Stefan about a terrible new development they must face...
Episode 12: The Descent
Stefan has his own ideas about Elena’s new plan for the future. While Damon tries to get the truth out of Jules, he asks Elena to keep an eye on Rose, a situation that turns unexpectedly dangerous. Caroline and Matt try to be honest about their feelings for one another, and Tyler’s reaction to Caroline’s generosity comes as a surprise to her... Damon struggles to hide his true feelings when a life-and-death crisis hits him harder than he expected.
Episode 22: As I Lay Dying
Mystic Falls screens "Gone with The Wind" in the town square, and Damon's memories of Katherine in 1864 mix with the reality of present-day Elena. Stefan pays a steep price after trying to prevent a tragedy, and Sheriff Forbes makes a dangerous mistake while trying to keep everyone safe. Multiple lives hang in the balance as the consequences of the sacrifice ritual play out to a horrifying conclusion.
Episode 11: By the Light of the Moon
As the full moon approaches, Caroline helps Tyler prepare for the transformation he is powerless to stop. While Stefan and Katherine play mind games on one another, Damon and Alaric are suspicious when a stranger named Jules shows up in Mystic Falls, searching for her missing friend, Mason. Elena is frustrated at the lengths Jeremy and her friends have gone to in order to keep her safe. Bonnie and Luca work together on a spell, while still keeping secrets from one another. Finally, Elijah makes an unexpected appearance with an offer that could change everything.
Episode 10: The Sacrifice
Elena decides to take matters into her own hands and offers a tempting incentive to Rose for her help. When things take an unexpected turn, however, Rose calls on Damon to deal with the plan Elena has set in motion. Jeremy’s reckless attempt to help Bonnie retrieve the moonstone lands him in a life-threatening position and forces Stefan to put himself in danger. Bonnie and Luka form a closer connection. Tyler shows Caroline the Lockwood cellar, where she makes a discovery that leaves them both terrified.