The glee club travels to Chicago, Illinois, to compete in Nationals against the best show choirs in the country, including Vocal Adrenaline, for celebrity judges including Lindsay Lohan and Perez Hilton.
Santana auditions and snags the role of Rachel’s understudy in “Funny Girl,” causing a feud between the roommates. Meanwhile, back in Lima, Tina and Artie compete against each other to be the class valedictorian.
Principal Figgins teaches the student body about the danger of underage drinking, and the glee club is personally touched by the message. Meanwhile, Mr. Schuester and Coach Beiste indulge in a little fun of their own.
Fresh off their monumental win at Sectionals, New Directions is on top of the world. With an extra spring in their step, they get to work on new numbers for regionals. But when Rachel and Finn’s budding romance hits a bump in the road after she becomes involved with a competitor, Jesse St. James, it threatens to derail the entire club. Mr. Schuester pays a visit to Shelby Corcoran, coach of Vocal Adrenaline, to confirm Jesse’s motives. Meanwhile, Will is newly single, but is he ready to take his relationship with Emma to the next level? And to top it all off, Sue Sylvester returns from her condo in Boca with a renewed focus on destroying Will and disbanding the glee club.
Will and Emma get ready for their Valentine’s Day wedding with the help of past and present New Directions members.
Dalton Academy burns to the ground, and the Warblers must combine with the New Directions to form a super group. Meanwhile, Rachel begs Carmen Tibideaux to let her return to NYADA.
To cause distension among the Glee Club members, Sue forces the students to compete against each other, but the real showdown happens when she and Will get called into the principal’s office. Meanwhile, the Glee kids rally to support Quinn after some shocking news is revealed.
Emma gets a visit from her parents; Mike Chang’s parents get involved when his grades aren’t up to their standards.
The William McKinley High School class of 2012 graduates, and the glee club bids farewell to its graduating seniors.
Finn has an existential crisis when he believes he sees the face of Jesus in his grilled cheese sandwich. Meanwhile, the rest of the kids rally around Kurt after he has a crisis of his own that leads to a larger discussion among the group about their own theology.
The New Directions pay homage to the Piano Man: Billy Joel. As graduation looms closer, the seniors make plans for their futures beyond the halls of McKinley.
The glee club are saying goodbye to each other when two old guests come and decide to save the glee club.
Hopes and schemes play out as the Glee Club holds auditions for the school’s musical.
When Sam, Tina and Blaine plan a lock-in at the school, Becky unexpectedly joins in; Elliot (Adam Lambert) gets caught in Santana and Rachel’s feud.
When Kurt sets his dad, Burt, up with an unexpected partner his plan for a nuclear family may backfire. Sue demands that the Cheerios! go on a crazy diet in preparation for a big interview with “Splits” magazine and April Rhodes returns to save Will and the glee club.
Concerned that Sue is up to no good, Will pays a visit to an instructor of a competing Glee Club to see what information Sue may be leaking, which leads to the club getting a look at their hair-rising competition. Meanwhile, Kurt gives Rachel a makeover to impress Finn, but he may have ulterior motives.
When the Glee Club is left out of the yearbook because of budget cuts, everyone seems to be relieved that they won’t have to suffer the ridicule of years past. Everyone except Rachel, that is, who wants her legacy cemented in print. Meanwhile, Quinn makes it her mission to be in the Cheerios yearbook photo, and Will and Terri’s relationship is shaken to its core.
Congressional hopeful Sue Sylvester starts a smear campaign to ruin the candidacy of her biggest rival. Puck falls in love, and glee club directors Will and Shelby encourage some friendly competition between their clubs
While Kurt tries out for the football team (taking a page from the glee playbook with him), Rachel storms out of glee practice when Will gives a plum part to Tina. Meanwhile, Sue comes up with a new plot to boost her program at glee’s expense; and Quinn has news for Finn.
Things heat up as the New Directions go head-to-head with the Dalton Academy Warblers at Regionals.