SECRETS OF THE TOMB — Stefan helps Elena and Bonnie out of a dangerous situation. Jeremy asks Anna to a party in the woods, unaware that she has her own reasons for wanting to meet him there. When Stefan, Damon and Elena work with Bonnie and Grams to open the tomb, everyone is shocked by what they discover.
Elena wakes up and finds herself in a strange hotel room. She sees Ben sleeping on and tries to slowly sneak out but Ben wakes up. Anna arrives and drags Elena to the bathroom locking her in. Elena finds Bonnie lying unconscious in the bathtub. She tries to help Bonnie and Elena informs her that Ben is with Anna and they want to open the tomb but they need a witch to do that.
Meanwhile, Stefan looks everywhere for Elena all over Mystic Falls but he cannot find her. He goes to Damon asking for his help but Damon, who is still mad at him, does not want to help. Damon leaves Stefan alone and goes to Bonnie's grandmother, Sheila, asking for Bonnie but Sheila knows really well who he is and tells him to go away.
Back at the motel room, Anna explains Elena that she wants to get into the tomb to free her mother Pearl who's trapped in there. Anna calls Stefan and asks him to bring her the Grimoire otherwise she will kill Elena. Stefan does not have it but promises he can get it and they arrange to meet Damon at a public place.
While Anna goes to meet Damon, she runs into Jeremy who invites her to a party. Anna tries to avoid him at the beginning but she changes her mind when she hears where the party will be — near the old cemetery. She takes off to meet Damon. Damon insists that he works alone but when Anna threatens to kill Elena, the two of them get to an agreement.
In the meantime, Stefan appears at the motel room and helps Elena and Bonnie. As they run out of the room, Stefan warns Ben to leave town otherwise, if he sees him again he will kill him. Anna comes back and finds Ben hiding behind the bed to avoid the sunlight. Ben tells her that Stefan came and he couldn't do anything. Anna realizes that she lost the witch but she knows that Damon will open the tomb no matter what and she has to be there when that happens.
Bonnie, Elena and Stefan are at Sheila's house talking and Elena thinks they do not have choice but to help Damon get Katherine back. Sheila agrees to open the tomb as long as the rest of the vampires are burned. Elena has to earn Damon's trust back and leaves to go and find him and talk to him. She finds him at the Salvatore house and she convinces him to trust her again. Stefan, Bonnie and Sheila wait for Damon and Elena at the church ruins. Stefan brought along arsonist tools. Damon, who brought and IV bag of blood for Katherine, and Elena arrive and Sheila and Bonnie start the process to break the spell and open the tomb. Stefan runs outside to get his arsonist tools.
Meanwhile, Jeremy gets at the party and looks around for Anna. Anna shows up and the two of them go for a walk away from the crowd. Anna tells him that she is leaving town with her mom and Jeremy kisses her. Anna's face begins to show that she is a vampire and Jeremy asks what is going on when Ben appears and knocks him out. Anna tells Ben to drag Jeremy close to the tomb so they can use him for Pearl to feed on when they'll get her out of the tomb.
Stefan runs into Ben while he is getting his tools. Anna also appears and tells him that she will take her mother out and gives Stefan a choice. He can try to stop her or save Jeremy from Ben. Stefan leaves Anna go and stays alone with Ben who tries to attack him believing he is stronger. Stefan uses the arsonist tool and burns him.
Meanwhile, Bonnie and Sheila keep chanting the spell and the tomb's door cracks open. Damon, to be sure that Sheila won't seal him into the tomb, grabs Elena and takes her with him in. Inside the tomb, Elena hears whispering and asks what is happening. Damon informs her that they can sense her but he runs off to find Katherine leaving Elena alone. Elena searches for him while she stumbles over the desiccated bodies of the vampires and freaks out.
Anna arrives at the tomb finding the door open. Bonnie wants to stop her but Sheila does not let her, so Anna gets into the tomb. Bonnie wants to know why her Grams let her in and Sheila says that no vampire will come out of the tomb. They managed to open the door but not break the seal spell so whoever vampire gets in, is not coming out. Stefan comes back and wants to run into the tomb when he hears Damon took Elena with hi but Sheila stops him, explaining him as well why.
Inside the tomb, Anna finds Elena and explains her how Stefan and Johnathan Gilbert are responsible for her mother's imprisonment and that's why she decided that it would be Gilbert family's blood that will bring her mother back to life. She bites Elena who starts screaming making Stefan run into the tomb to find her. Anna feeds Elena's blood to Pearl but Stefan gets there in time before Pearl kills her. Elena runs away to get out of the tomb.
Bonnie wants to help Stefan get out and she begs Sheila to lift the seal just for a while so Stefan can come out. Elena gets out and Bonnie tells her about the seal. Stefan gets to the door but cannot step outside and Elena realizes that he got in only to save her even though he knew. She also remembers the promise they gave Damon and Stefan goes back inside to find his brother. Bonnie and Sheila do a spell to lift the seal and Anna comes out with her mother.
Damon is still in the tomb but he cannot find Katherine anywhere. Stefan comes to him and realizes that Katherine is not in the tomb, never was. Damon is frustrated and throws the IV bag of blood against the wall breaking it. Stefan urges him to hurry so they can get out before the seal closes again. Elena runs in to beg them to leave. The three of them get out just in time before the door closes again.
Bonnie and Sheila go back home while Sheila looks exhausted over the energy she spent for the spell and goes to lie down. Elena and Stefan rush to find Jeremy who is waking up and he is fine. Damon is shocked for not finding Katherine and Elena hugs him telling him she is sorry. Elena takes Jeremy home who says he cannot remember anything but when Elena leaves to go to Bonnie, Jeremy starts searching on the Internet about vampires.
Anna brings her mother at her motel room where they find Damon waiting for them. Damon grabs Pearl threatening to kill her and accuses Anna of knowing the whole time that Katherine was not in the tomb. Anna admits that she did know but she did not tell him because then he would never help her open the tomb. Pearl explains to him how Katherine got away and Anna tells him that she saw Katherine few years ago. Katherine knew where Damon was but she did not care to find him. Damon is heart broken over the information and leaves.
Bonnie goes to check on her Grams but she finds her dead. She starts yelling for help while she desperately goes through the spell book to find a spell that will bring her back and Elena calls 911.
Back at the tomb, a vampire manages to get to the blood bad Damon threw against the wall and he feeds on its contents. He gets up, slowly gets to the door sliding it open and exits the tomb revealing that the seal spell did not work.
This is the first episode where Anna is an antagonist in the series.
Anna before she took Elena in Children of the Damned must have overheard Stefan and Elena talking about the vampire blood in her system as to why she didn't break her neck when she took Elena hostage and threatening not letting her complete her transition. Note: This is due to the fact that the producers decided to keep Elena human in Season 1 but had planned originally to make her vampire near the end of Season 2.
Katherine is revealed to have escaped the tomb under Fell's Church before it was sealed shut by Emily Bennett to protect the victims of the vampire-round-up of 1864.
To prove to Damon that she is being sincere about helping him free Katherine, Elena removes her vervainnecklace and asks if she's lying now, risking being compelled by Damon in order to prove herself as being genuine in her offer.
Damon tells Elena that he never compelled her in Atlanta, as they were having fun together, and he wanted it to be real.
Elena goes into the tomb with Damon of her own free will as reassurance for Damon that he wouldn't be sealed into the tomb by the Bennett witches afterward.
After Damon learns Katherine was never sealed in the tomb, Elena comforts him with a hug.
This is the first episode in which Matthew Davis is credited as a series regular, and he remains as such until the season three finale, The Departed. Interestingly enough, his character (Alaric Saltzman) does not appear in this episode.
While this episode is aptly named for its numerous 'fool me once' moments, it is notable in several ways regarding Damon's trust issues:
His trust is betrayed twice by Stefan in this episode; once in 1864 and again in the present day.
Katherine fooled him (and Stefan) once when she allowed him to believe that she had been entombed in the cellar of Fell's Church with the other vampires for 145 years.
Elena fooled him once, when she helped Stefan recover Emily Bennett's grimoire behind his back.
Sheila Bennett fooled him once by tricking him into entering the tomb without actually lifting the magical seal that trapped the vampires there.
This is the final episode of the second chapter of Season One, The Tomb Chapter.
Anna: "My mother's in there. Katherine couldn't help herself. She just had to toy around with both of the Salvatore brothers. Then when she got caught, so did my mother. I watched Johnathan Gilbert take her away."
Pearl: (gasps as Damon chokes her) "The guard, the one at the church, the one who locked us in. She promised to turn him. He was obsessed with her. She had him under her spell like everybody else. He let her go."
Anna: "Last I saw her was Chicago, 1983. She knew where you were, Damon... she didn't care."
Anna: "So you're finally ready to go out with me, are you?"
Jeremy: "It's been a while since I've been to a party, and I kinda wanna get back out there. You know, not be such a loner. And, uh, I like you. You're fun, and... you're also kinda strange and lurky, but, uh, I guess I like that too."