Much to Blaine’s chagrin, his big-shot Hollywood actor brother, Cooper (Guest Star Bomer), comes to visit. Musical performances include "I'm Still Standing", "Fighter", "Up Up Up", "Hungry Like The Wolf/Rio" and "Somebody That I Used To Know".
Things heat up as the New Directions go head to head with the Dalton Academy Warblers at Regionals. Musical performances include “Cough Syrup”, “Stand”, “Glad You Came”, “Fly/I Believe I Can Fly”, “What Doesn’t Kill You (Stronger)” and “Here’s To Us”.
In honor of Valentine’s Day, Will challenges the New Directions to find and perform the world’s greatest love songs. Meanwhile, Rachel’s two dads Hiram (Guest star Jeff Goldblum) and LeRoy Berry (Guest star Brian Stokes Mitchell) pay a visit to McKinley High. Musical performances include "L-O-V-E", "Let Me Love You", "Stereo Hearts", "Home", "I Will Always Love You", "You're The Top", "Cherish/Cherish" and "Love Shack".
Will assigns the glee club a Spanish singing assignment, and enlists the help of his musically-inclined night school teacher (Guest star Ricky Martin). Meanwhile, Rachel spills the beans to Kurt and Mercedes on Finn’s marriage proposal, and Mercedes has love complications of her own. Musical performances include "La Cucaracha", "Sexy And I Know It", "Don't Wanna Lose You", "Bamboleo/'Hero' Medley", "La Isla Bonita" and "A Little Less Conversation".
In a special episode celebrating the music of Michael Jackson, the rivalry between New Directions and the Warblers intensifies en route to Regionals. Meanwhile, Kurt and Rachel receive news regarding their admissions process at NYADA, and things continue to heat up between Sam and Mercedes. Musical performances include “Wanna Be Startin’ Somethin”, “I Want You Back”, “Bad”, “Scream”, “Never Can Say Goodbye”, “Smooth Criminal”, “Ben”, “I Just Can’t Stop Loving You”, “Black or White (rap version)” and “Human Nature”.
When Will tries to plan a special surprise for Emma, he enlists the glee club to help him sweep her off her feet. Meanwhile, Becky sets her sights on Artie, and Finn makes an announcement about his life plans after high school that surprises the glee club. Guest starring NeNe Leakes. Musical performances include “Moves Like Jagger”/”Jumpin’ Jack Flash”, “Summer Nights”, “The First Time Ever I Saw Your Face”, “We Found Love”, “Wedding Bell Blues” and “Without You”.
When New Directions is asked to perform at two different events – on the same day, at the same time – they have a tough decision to make. Will they choose correctly and spread Christmas cheer, or will their ambition get the best of them. Musical performances include “All I want For Christmas Is You", "Blue Christmas", "Santa Baby", "River", "Extraordinary Merry Christmas", "Let It Snow", "My Favorite Things", "Santa Claus Is Coming To Town", "Christmas Wrapping", "Do They Know It's Christmas" and "Frosty The Snowman".
In an attempt to recruit a few more members, Finn tracks down former teammate Sam Evans and convinces him to come back to the glee club. Tina comes to the defense of Harry and encourages him to pursue his dream while McKinley prepares to host the big sectionals performance. Musical performances include "Red Solo Cup", "ABC", "Control", "Man in the Mirror", "Buenos Aires", "Survivor"/"I Will Survive" and "We Are Young".
As the race for McKinley High President comes to an end, someone is caught trying to fix the results. Meanwhile, Coach Beiste gets up the nerve to challenge Sue Sylvester and things get complicated for Puck and Quinn. Musical performances include "Perfect", "I'm The Only One", "Girls Just Want To Have Fun", "Jolene", "I Kissed A Girl" and "Constant Craving".
Sue starts a smear campaign to take down her biggest competitor for the Congressional seat. Meanwhile, Puck has a crush, and Will and Shelby Corcoran encourage some friendly competition. Musical performances include “Hot For Teacher”, “You And I”, "Hit Me With Your Best Shot", "One Way Or Another", “I Can’t Go For That (No Can Do)”, “You Make My Dreams”, “Rumour Has It” and “Someone Like You”.
Under Artie’s directorial leadership, the kids prepare to perform the school musical “West Side Story.” Meanwhile, Finn meets with a recruiter, and Coach Bieste has an admirer. Musical performances include “Tonight”, “Uptown Girl”, “A Boy Like That”, “America” and “One Hand One Heart”.
A new foreign exchange student, Rory Flanagan (guest star Damian McGinty), enrolls at McKinley and crashes with Brittany S. Pierce who thinks he’s a leprechaun. Meanwhile, Mercedes (Amber Riley) attempts to recruit new members to join Shelby Corcoran’s (guest star Idina Menzel) newly formed Glee club and Sue’s congressional campaign heats up. Musical performances include “Bein’ Green”, “Last Friday Night”, “Candy Man”, “Waiting For A Girl Like You” and “Take Care of Yourself”.
Rusty (guest star Don Most) and Rose (guest star Valerie Mahaffey) Pillsbury pay Emma a visit and we get a sneak peek into her deep rooted issues. Meanwhile, Mike Chang struggles with his grades and his parents (guest stars Keong Sim and Tamlyn Tomita) step in to make sure he stays on track. Musical performances include “Spotlight”, “Run The World (Girls)”, “Cool”, “It’s All Over”, “Out Here On My Own” and “Fix You”.
Shelby Corcoran (guest star Idina Menzel) returns to the halls of McKinley High. Meanwhile, Mr. Schuester initiates a boot camp for some of the members of New Directions. Musical performances include “Somewhere”, “I’m The Greatest Star” and “Something’s Coming”.
Its fall and that means back to school for the students and faculty at McKinley High. The New Directions clan returns after a devastating loss at Nationals, so Mr. Schuester assigns a project to get them back on track. Meanwhile, Sue Sylvester starts her congressional campaign with an anti-arts platform. Musical performances include “Ding Dong The Witch Is Dead”, “We Got The Beat”, “Anything Goes/Anything You Can Do”, “It’s Not Unusual” and “You Can’t Stop The Beat”.
GLEE follows an optimistic teacher who - against all odds and a malicious cheerleading coach - inspires McKinley High's Glee Club to conquer the world one singing competition at a time.