Blaine and Brittany fight for the Student Council Presidency. Meanwhile Kurt gets his dream job.
The New Directions travel all the way to Chicago to compete in the 2012 Nationals. The Judges turn out to be celebrities Lindsay Lohan and Perez Hilton.
Brittany as class president begins to set up the senior prom; she settles on a Dinosaur theme for the evening; The hunt begins for the prom king and queen; troublemakers have their own plans for prom night.moreless
The crew does a big disco tribute to Saturday Night Fever while also learning some important lessons along the way.
Blaine's older brother Cooper (guest star Matt Bomer), visits Lima and gives a class to the New Directions. The Glee Club does senior ditch day at Six Flags. Quinn's fate is revealed.
McKinley High's night school teacher comes on board to help Will with his latest singing assignment: music in Spanish. Guest star Ricky Martin joins New Directions for a Latin themed episode. Meanwhile, news of Rachel and Finn's engagement starts to spread, and Mercedes finds her in the middle of a complicated romantic relationship.moreless
Will wants to propose to Emma. Sam joins the McKinley Synchronized Swim Team to win back Mercedes. Becky has a crush on Artie and Finn learns more about his father.
Finn tries to help Santana feel better about herself, while she faces the challenge of coming out to her family. Puck tries to seduce Shelby and Quinn tries to seduce him.Meanwhile, the voting for Senior Class President and the Congress seat occur, and Sue complicates Beiste's relationship.moreless
Sue starts a dirty campaign against Burt and the competition between New Directions and the Trouble Tones gets nasty.
New Directions faces a shake up when Shelby Corcoran (special guest star Idina Menzel) comes to McKinley High and Rachel has to deal with the return of her biological mother. Meanwhile, Kurt starts his run for class president with the special help of Brittany.moreless
The third season kicks off with Will assigning the glee clubbers a new project which will help them get back on track after losing at nationals last year. Sue sets off a new project as well: running for office in a congressional campaign with a focus on getting arts out of schools.moreless