As Ryder frets over why Katie_xoxo has yet to reveal herself to him, Will worries that their Regionals rivals the Hoosier Daddies have a ringer in big-voiced Frida Romero (Jessica Sanchez) and decides New Directions needs to go bigger than ever with an epic stadium rock style. But an unexpected power outage at McKinley - during which Figgins insists the students remain in school - changes Will's plan: "It's Unplugged week."
When Ryder tells Jake about the deep, dark secrets he's shared with Katie_xoxo, Jake suggests that the secrets aren't going to go away - maybe Ryder should share them with people he actually knows. In New York, Rachel and Kurt confront Santana: having learned that along with working at Coyote Ugly she's bouncing at a lesbian bar and working as a cage dancer in another, they worry that she's squandering her talents, but Santana insists she needs time to figure out her life path and blows off their concern.
Sam breaks the seal on the Unplugged theme with an acoustic performance of the Righteous Brothers' "You've Lost That Lovin' Feelin'" with harmonizing assist from the glee club. When Artie balks at performing without the use of his synthesizer, Sam - who entertained his family during many nights when the power was shut off - calls out all the students on their overreliance on technology.
At Vogue.com, Isabelle reassures Kurt that while his admission into NYADA has cut into his internship hours, he still has a job there thanks to the quality of his work - BUT she needs his help wrangling celebrities for the New York City Ballet Gala, a high-profile charity event she's organizing. Meanwhile, Sue's found a new career as a personal trainer for pampered and privileged trophy wives. Blaine tells her he's concerned about Coach Roz's dubious instruction (like rib removal) and the fact that the students are still unsettled about the mysterious gun incident, and he urges Sue to reveal whatever secret truth lies at the heart of it.
Inspired by Sam's speech, Artie suggests going "Unplugged Squared" by performing without real instruments, using everyday items to create music instead. Kurt's involvement with the Ballet Gala sparks fond childhood memories for him and Rachel, although Santana's not interested in helping throw the party - but Kurt's promise of a gown from the Vogue.com vault that she can keep changes her mind.
Ryder tries to work through some of his feelings with an acoustic performance of R.E.M.'s "Everybody Hurts," followed by the revelation of the secret he's been keeping: he was molested by a female babysitter when he was 11. When the guys are surprised he's troubled by this, believing it to be every guy's fantasy, he backpedals on his admission. Later, over dinner at Breadsticks with a newly single and Puck-free Kitty, she explains that she had a similar experience with a friend's older brother that ultimately caused her to switch schools when nobody seemed to understand. She wants Ryder to know that she empathizes with his experience.
Artie's musical concept is realized by New Directions in a performance of Queen's "We Will Rock You." Becky pleads with Sue to come back, not sure she can endure Roz's long run-on-sentenced-filled tirades (Roz remains convinced that Becky is Sue's rapidly aged baby). Sue insists that she's moved on and is through devoting her life to the self-centered Cheerios, imagining a scenario of turning on them set to "Little Girls" from the musical "Annie." She says she doesn't miss the girls at all, but her longing gaze at Cheerios practice suggests otherwise.
Before the Ballet Gala, at Isabelle's suggestion that every little girl starts out wanting to be a ballerina, Santana admits that she, too, loved taking ballet as a child, prompting a fantasy reverie of "At The Ballet" from the musical "A Chorus Line." Santana admits that she loves dancing but has no idea what she ultimately wants to do or how to get there, and Isabelle assures her that baby steps are okay.
Roz complains to Figgins about Becky's ongoing belligerence, but Becky confesses to Figgins that she only acted out to be sent to the principal's office so she could unburden herself. The power at McKinley is restored, and the glee club's ready to plug back in, but Will insists on one more lesson a capella and wants the students to really deliver.
Chatting online with Katie_xoxo, Ryder explains that despite her deception, he has her to thank for opening up to his friends about his secret. But when faced with the prospect of leaving for lunch with Kitty or continuing to chat with his unknown love interest, Ryder chooses to stay at the computer even after Kitty admits that she doesn't easily warm to people and she's not likely to give him another chance.
When Santana's new ballet instructor insists that the students had better not expect the class to be a simple stepping-stone into NYADA, Santana explains that she's just there because she loves to dance and wants to reconnect with her artistic side. Meanwhile, the glee club nails their last unplugged performance with a beautifully harmonized rendition of Billy Joel's doo-wop classic "The Longest Time."