Episode: 2x17 (Season 2 Episode #17)
Aired: April 7, 2011
Know Thy Enemy
Plot: Elena and Alaric are upset with John after Isobel's unexpected arrival devastates Jenna. Damon, Jeremy, and Bonnie search for the spell they'll need to harness the power of Bonnie's ancestors. Caroline, heartbroken, doesn't know how to handle the situation with Matt. Damon and Stefan realize they have a new secret weapon.
Episode: 2x16 (Season 2 Episode #16)
Aired: February 24, 2011
The House Guest
Plot: Even though Elena, Damon, and Stefan are tired of Katherine's constant mind games, they realize that Katherine's knowledge of Mystic Falls history will help them survive. Caroline finds a new way to get Matt's attention after feeling frustrated with their relationship. Alaric reveals some shocking information 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 intense confrontation.
Episode: 2x15 (Season 2 Episode #15)
Aired: February 17, 2011
The Dinner Party
Plot: Stefan tells Elena about a dark time from his past and the unexpected person who changed everything for him. Jonas gets the truth out of Luka and makes his feelings clear to Bonnie and Jeremy. Damon schedules a dinner party with Alaric, Jenna, and Andie in attempt to catch Elijah off-guard, but some last-minute information disrupts Damon's plan.
Episode: 2x14 (Season 2 Episode #14)
Aired: February 10, 2011
Plot: Stefan and Elena make plans for a romantic weekend at the Gilbert's lake house, not realizing that someone has followed them. Jenna starts to worry that Alaric isn't being completely honest with her. Jules explains the significance of the sun and moon curse to Tyler, but leaves out an important detail. Damon attends a tea party at the Historical Society to get a chance to talk to Elijah, but Elijah refuses to divulge any secrets. With help from Caroline and Jeremy, Bonnie deceives Luka into giving up some surprising new information. Tyler offers Matt some relationship advice.
Episode: 2x13 (Season 2 Episode #13)
Aired: February 3, 2011
Plot: Elena, Damon, and Jenna are surprised when Johnathan Gilbert returns to Mystic Falls. Caroline tells Stefan about her conversation with Tyler, and Stefan tries to help a confused Tyler. Jeremy consoles Bonnie after her upsetting conversation with Jonas. A violent situation breaks out after Jules takes a hostage.
Episode: 2x12 (Season 2 Episode #12)
Aired: January 27, 2011
Plot: Elena has a new plan for the future, but Stefan has his own thoughts about how she should handle the situation. Damon tries to get the truth out of Jules and asks Elena to watch Rose, but things quickly become dangerous. Matt and Caroline try to be honest about how they feel about each other, and Caroline is surprised to see how Tyler reacts to her generosity. Damon finds it difficult to hide his true feelings when a life-and-death situation impacts him more than he expected.
Episode: 2x11 (Season 2 Episode #11)
Aired: December 9, 2010
By the Light of the Moon
Plot: With a full moon approaching, Caroline helps Tyler prepare for his inevitable transformation. Stefan and Katherine play mind games on each other, and Damon and Alaric become suspicious when a mysterious visitor named Jules shows up in Mystic Falls, looking for her missing friend, Mason. Elena is frustrated at Jeremy and her friends' excessive efforts to protect her. Bonnie and Luca team up to work on a spell, though both continue to keep secrets from each other. Finally, Elijah makes an unexpected appearance with an offer that could change everything.
Episode: 2x10 (Season 2 Episode #10)
Aired: December 2, 2010
Plot: Elena comes up with her own plan to deal with her situation and offers Rose a tempting incentive for her help. When Rose discovers Elena's true intentions, she calls on Damon for help. Tyler shows Caroline the Lockwood's cellar, where she makes a terrifying discovery. Jeremy and Bonnie attempt to retrieve the moonstone from Katherine, but Stefan ends up in danger when things don't go as planned. Bonnie and Luka also become closer.
Episode: 2x9 (Season 2 Episode #9)
Aired: November 11, 2010
Plot: Elena is put in peril when as she searches for information about Katherine's past. Knowing that Stefan would disagree with her plan, Elena swears Caroline to secrecy. Meanwhile Bonnie and Jeremy meet a new student, Luka, with an unusual family history and Damon uses a new-found confident to discover the purpose of the moonstone.
Episode: 2x8 (Season 2 Episode #8)
Aired: November 4, 2010
Plot: Jeremy teams up with Bonnie after she casts a difficult spell. Stefan and Damon both come to Elena's assistance, and in the process, learn some information about vampires, people and events in the distant past. The brothers also come to reach a new understanding. Meanwhile, Caroline tries to make things easier for Tyler.
Episode: 2x7 (Season 2 Episode #7)
Aired: November 28, 2010
Plot: Damon and Stefan devise a new plan to deal with Katherine at the Lockwood's masquerade ball. Katherine asks her friend, Lucy, to join her at the ball. Bonnie, Alaric, and Jeremy do their best to help Stefan and Damon with their plan, but Katherine has a surprise that none of them expected. The evening takes a bad turn when Tyler and Matt start doing shots with their friends.
Episode: 2x6 (Season 2 Episode #6)
Aired: November 21, 2010
Plot: Jeremy offers to help Alaric and Damon deal with Katherine, despite Elena's concerns about Jeremy's safety. Caroline and her mother share some rare quality time together. When Bonnie learns some new information about Mason, she decides to share it with Stefan, which leads to Damon taking action on his own.
Episode: 2x5 (Season 2 Episode #5)
Aired: November 7, 2010
Kill Or Be Killed
Plot: While Stefan and Damon argue over how to handle the Lockwoods, Tyler learns more about his Uncle Mason and the family curse. Despite Elena's wishes, Jeremy gets closer to the Lockwood mystery by hanging out with Tyler. Sheriff Forbes receives some shocking information from Mason, leading to a chaotic night.
Episode: 2x4 (Season 2 Episode #4)
Aired: September 30, 2010
Plot: Stefan takes more dramatic actions as he tries to discover the truth behind why Katherine has returned to Mystic Falls, and he is stunned when Katherine reveals some new information about the events that unfolded in 1864. Damon tries using a new method to resolve his issues with Mason, but his decision has serious consequences. Tyler pressures Mason to tell him the truth about the Lockwood family. Stefan and Elena are faced with limited options when Katherine gives them an ultimatum.
Episode: 2x3 (Season 2 Episode #3)
Aired: September 23, 2010
Bad Moon Rising
Plot: Elena, Damon, and Alaric travel to Duke University to study Isobel's research on folklore and paranormal phenomena, hoping to find some clues to the mystery surrounding the Lockwoods. Vanessa, a former student of Isobel's, helps them sort through the research and ends up learning more than she had anticipated. Stefan encounters a terrifying new danger in the woods, and Tyler uncovers a shocking discovery about his uncle Mason.
Episode: 2x2 (Season 2 Episode #2)
Aired: September 16, 2010
Brave New World
Plot: Caroline, feeling confused and desperate, joins her friends at the Mystic Falls Carnival after being released from the hospital. Damon wants to take immediate action, but Stefan and Elena offer Caroline their support. Matt tries to tell Caroline how he feels about her despite being confused about her behavior. Damon starts to suspect Mason Lockwood and tries to use Tyler's short temper to get Mason to reveal his secret. Bonnie takes her frustrations out on Damon as she becomes frustrated with everything going on around her.
Episode: 2x1 (Season 2 Episode #1)
Aired: September 9, 2010
Plot: Elena returns home and is horrified to learn what has happened to Jeremy and Uncle John. Bonnie, Matt, and Damon wait at the hospital with Sheriff Forbes, who is anxious to hear whether Caroline will survive the car accident. Elena and Damon share a confusing conversation about the evening's events, and Damon realizes that Katherine has returned. He and Stefan set out to learn why Katherine came back and whether she poses a threat to Mystic Falls. Tyler's uncle, Mason, arrives to console his family members, who are still grieving after the mayor's death.
Episode: 1x22 (Season 1 Episode #22)
Aired: May 6, 2010
Plot: It's Founder's Day, and everyone is preparing for floats and fireworks. Though Damon and Alaric try to stop Johnathan Gilbert, he sets his plan in motion, leading to a chaotic, destructive, and deadly end to the Founder's Day celebration.
Episode: 1x21 (Season 1 Episode #21)
Aired: May 6, 2010
Plot: Isobel returns to town and surprises Alaric with a new attitude and demands that he arrange for her to meet Elena. When the two finally meet, Isobel refuses to answer most of Elena's questions, but instead reveals that she, too, is looking for the mysterious invention that John Gilbert has been seeking.
Episode: 1x20 (Season 1 Episode #20)
Aired: April 29, 2010
Plot: As Stefan tries to come to terms with his past, he and Damon reveal pieces of their history to Elena, including the truth about how they were turned into vampires. Pearl and Jonathan Gilbert have an an ugly confrontation. Damon and Alaric attempt to track down a mysterious invention before Johnathan can find it. Jeremy and Anna's relationship continues to grow.
Episode: 1x19 (Season 1 Episode #19)
Aired: April 22, 2010
Miss Mystic Falls
Plot: At the Founder's Day Gala, Elena and Caroline compete in the "Miss Mystic Fall" contest. Elena is very happy to have Bonnie back but Bonnie still has some issues to work. Meanwhile, John Gilbert tries unsuccessfully to intimidate Damon, and Damon discovers that Stefan is hiding a very dangerous secret.
Episode: 1x18 (Season 1 Episode #18)
Aired: April 15, 2010
Plot: Stefan struggles to maintain control of his new circumstances, and Elena and Jeremy's uncle, John Gilbert, unexpectedly shows up in Mystic Falls. Alaric and Elena have an awkward conversation about Isobel. Stefan exhibits some unusual behavior at the Founder's Day event, and things turn ugly when Damon tries to find out why John Gilbert has returned. Matt and Tyler find themselves in conflict after an incident at the party, and the relationship between Matt and his mom reaches a new low point. Meanwhile, Elena is unable to comfort Jeremy, causing him to take action.