Her father Harold comes to meet her with a picnic basket and commends her on taking her punishment so maturely. Dorota tells Blair that her “martyr act” stinks like the garbage she should be picking up.
Serena goes to surprise her teacher, Rachel Carr, at her favorite breakfast spot, but finds Dan there already. Serena was going to show Rachel her King Lear essay, but the situation is kind of awkward so she bails.
Chuck Bass wakes up with vague memories of masked women and an insignia on his wrist. He calls Nate and asks him to meet at a strange address.
Blair runs into Rachel outside school, having completed her detention. She tries to rally the troops to get revenge, but the posse isn't buying it ... that is until the headmistress announces a new rule: no cell phones during school hours. Behind that rule? Miss Carr. She's going down.
Dorota sneaks contraband phones (hilarious) into the ladies room and the girls set to work trying to dig up dirt on Rachel.
Only they find nothing on this squeaky clean teacher, so Blair Waldorf tells them to make some gossip up, obviously.
Chuck is investigating at the address with Nate and Vanessa. C received an invite in the mail to the “ultimate private gentleman's club,” where he met the most beautiful woman he's ever seen. But he doesn't remember much, and woke up alone in a hotel room alone. Where was he and with who?
Soon enough, Dan starts getting high fives from fellow dudes, and has no clue why. Jenny clues him in that there’s a rumor on Gossip Girl that he totally is hot for teacher.
Dan denounces the rumor to Jenny, then to Serena, who implies that Blair must be behind it.
In the mansion, Chuck points out a framed photo of his masked maven holding a newborn. Must be the family’s mother, Vanessa observes.
They find a realtor’s card in the mansion, and Chuck calls her up.
Dan sneaks up on Blair in the Constance ladies room. Blair makes a snide remark about Dan having lady parts, and denies the rumor.
Meanwhile, Serena tells Miss Carr about her writing insecurities and brings her up to speed about the rumor.
Chuck convinces the realtor to let him see the mansion owner’s file. He calls and asks who the woman is, and finds out he met a nanny, Elle, who nurses in Connecticut. Chuck leaves his number and hopes she’ll call.
Blair is called into Queller’s office, where Miss Carr awaits. Nelly Yuki threw Blair under the bus. Blair gets expelled.
Harold Waldorf wants to know if Blair posted the rumor. She says yes, but it wasn’t a lie. He promises to talk to his lawyer and that she won’t be punished for telling the truth.
Back in Brooklyn, Rufus interrogates Dan about the truth to the gossip, as Vanessa receives a sexy mask and an invitation in the mail.
Serena meets Rachel in the park and asks her to forgive B. Miss Carr doesn’t budge, and leaves for a “meeting,” but also leaves her planner on the park bench.
Serena finds the address of the meeting and follows her.
Rufus and Lily walk into an emergency parents’ meeting about pending Online Honor Codes, and Harold and Rufus exchange a few words before going in.
Miss Carr’s meeting is actually with Dan for coffee, because she wants to thank him for being her friend, or something.
Sort of admitting she does have a crush on him, Rachel tells Dan he can call her in five years. Then she breaks down because she's sad about the rumor
S approaches the window of the restaurant just as Dan strokes Miss Carr’s hair back and goes to hug her. She catches the moment on her phone, even though nothing more happens, and walks away just as R rejects the hug.
Chuck continues mystery and meets Elle. She informs him that the invite wasn’t for him, but for his dad, who was a member of an elite group of classy ... something. Elle is a nanny by day, club escort by night.
When she found out she snared the wrong Bass, she drugged his drink and left him in a hotel room hoping he wouldn’t remember her.
She’s scared the group will do something drastic if they found out she brought in an outsider, and asks him not to contact her again.
Vanessa puts on her mask and heads to ... Nate’s. Turns out he sent it to her, and they head into his house to hang out. That's pretty much that.
S shows B the proof about Miss Carr and says B was right. Blair sweeps off to the parents’ meeting with the photo.
There, the Constance parents debate slander issues, when Blair rushes in and asks Queller to check her email.
She pulls up the photo on the projector, and Rufus and Lily look on in shock.
Outside the meeting, Serena confronts Dan, who explains he was just being “friendly.” The meeting gets out: Miss Carr got fired and Blair is back in at Constance.
Serena believes Dan, but admits that she wanted to believe the worst about Dan because deep-down she wants to break up. They hug it out and let their relationship go.
Dan tells Rufus that Miss Carr shouldn’t have been fired, when he was the one who screwed up.
Blair’s dad is pissed, though, having her admit that she sent in a lie, and he’s disappointed that she’s not as mature as he thought.
Chuck receives a call from Elle’s employers saying she’s gone missing and asking for his help.
Dan goes to Miss Carr’s house and starts to apologize ... until she kisses him and pulls him inside, saying she doesn't teach at Constance anymore.
But back at school, the headmistress has done a 180 and is saying that she needs to give Rachel her job back to avoid a wrongful termination suit.
They don’t have enough proof, and she believes Dan’s story.
The headmistress is on her way to tell Rachel, but wanted to tell the head of the Parents’ Committee (Lily) first.
Miss Carr misses her call, as she's getting it on with Dan.
(Source: TV Fanatic)