Tina's head injury from falling into a fountain leaves her seeing her fellow singers and other people at McKinley High in a new way as rehearsals continue for the glee club's Nationals performance.

A love triangle heats up among Marley, Jake and Ryder, and Blaine has a run-in with the Warblers.

New Directions produces a sexy calendar to raise money for their trip to Regionals. Rachel is faced with a personal dilemma when she’s cast in a student film. Finn and Sue go toe-to-toe.

The kids of New Directions go head-to-head in their annual boys vs. girls mash-up competition, this time using the music of the movies. Meanwhile, in New York, Santana makes herself at home in the loft a little too quickly for Rachel and Kurt's comfort.

As the Prom approaches, the race for Prom Queen brings out the best and the worst in candidates Tina and Kitty. Meanwhile, Sam tries to make a connection with a new school nurse, an increasingly discouraged Rachel waits for word on her Funny Girl callback, and Santana makes a new friend at work.

The members of New Directions tackle their assignment of getting out of their comfort zones and determining whether they're more like "Katy" (Perry) or (Lady) "Gaga." Kurt holds auditions for his new band and must decide if he'll let in the overly bold performer, Starchild. Meanwhile, Jake gets closer to Bree as he and Marley grow apart.

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.

Rachel is presented with a unique opportunity which could either take her career to the next level, or possibly kill it entirely. Meanwhile, Mercedes asks for Santana’s help finding a “new sound” for her latest single, and a wealthy New York socialite takes Blaine under her wing.

Rachel hopes to form a deal in which Will's glee club purposefully under-performs at their invitational; Sue wants Sam to distract Rachel.