Sue's mother comes to visit, bringing some surprising revelations. Sam tells Quinn he's in love with her and offers her a promise ring.
A substitute teacher takes over for an ill Will Schuester and wows the group with her unconventional teaching methods.
Will Schuester hosts the second annual Boys vs. Girls competition, while Puck finally gets out of juvenile detention.
Will assigns the Glee Club to perform "The Rocky Horror Picture Show" for the school musical after learning of Emma's newfound love for the cult film.
Will Schuester's duet challenge, with a free meal for the winners, causes some relationship issues between the members of the club.
Finn thinks he sees the face of Jesus in a grilled cheese sandwich, and random events have the members of the Glee Club questioning religion and God.
Brittany has hallucinations while at the dentist and channels her inner Britney Spears. Rachel fears her relationship with Finn could be in peril.
New faces challenge some Glee Club veterans during auditions, while new and old relationships leave some feeling happy -- and others sad.
Entering its sophomore season, GLEE is a biting musical comedy that has quickly become a pop-culture phenomenon. GLEE follows a group of eager and ambitious students as they strive to outshine their singing competition while navigating the cruel halls of McKinley High. The second season of Glee will include guest appearances by heartthrob John Stamos, international pop star Charice and newcomer Chord Overstreet.
The moment New Directions has been waiting for has arrived: Regionals! But when Sue pulls a fast one, their chances at the title could be compromised.
Glee Club gets some bad news. Meanwhile, Mercedes helps Quinn connect with her funky side, and Will gets revenge on Sue.
Mr. Schuester encourages the Glee Club kids to express themselves using the music of Lady Gaga. Meanwhile, Tina embraces her inner Goth.
In an episode directed by Emmy Award winner Joss Whedon, Mr. Schuester's former high school nemesis, Bryan Ryan, causes trouble for Glee Club.
When a sore throat affects Rachel's singing voice, she goes into panic mode. Meanwhile, Kurt tries to change his persona to impress his father.
Mr. Schuester starts an investigation when a salacious list about members of the Glee Club circulates the halls of McKinley High.
When Kurt sets his dad, Burt, up with an unexpected partner, his plan for a nuclear family may backfire.