third season of the Fox musical comedy-drama television series Glee was commissioned on May 23, 2010 while the first season aired. It premiered on September 20, 2011, and is being produced by 20th Century Fox Television and Ryan Murphy Television, with executive producers Dante Di Loreto and series co-creators Ryan Murphy, Brad Falchuk and Ian Brennan.

The series features the New Directions glee club at the fictional William McKinley High School in the town of Lima, Ohio. Season three follows the club through sectional and regional competitions before competing in the national show choir competition in Chicago, while its members and faculty deal with sex, relationships, sexual identity, gender identity, adoption, domestic abuse, teenage suicide, bullying, disabilities, texting while driving, college and other social issues. The central characters are glee club director Will Schuester, cheerleading coach Sue Sylvester, guidance counselor Emma Pillsbury, and glee club members Artie Abrams, Blaine Anderson, Rachel Berry, Mike Chang, Tina Cohen-Chang, Quinn Fabray, Finn Hudson, Kurt Hummel, Mercedes Jones, Santana Lopez, Brittany Pierce and Noah "Puck" Puckerman. At the end of the season, eight members of the glee club graduate: Rachel, Mike, Quinn, Finn, Kurt, Mercedes, Santana and Puck.

Overview from themoviedb.org