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.
Blaine believes he has the best plan to win Nationals, but he doesn't take the glee club's criticism too well when the students accuse him of being too controlling. Over in New York, Kurt also runs into control issues when the band disagrees over the venue of their first official gig that Kurt booked. Meanwhile, Sue reveals the story behind her iconic tracksuit and gets in touch with her feminine side.
Jane Lynch introduces the episode as a Christmas special that FOX did not allow to air from last year. The New Directions audition for roles in McKinley's living Nativity Scene. Meanwhile in New York, Rachel, Kurt and Santana work as Santa's elves at a mall.
The Glee club is finally coming to an end and the members of New Directions say their farewells to Mr. Schuster. Rachel and Santana get to the core of their quarrels and sing it out in traditional Glee style.
Sam and Mercedes cross difficult hurdles in the road to love. Rachel's "mid-winter critique" performance leads her to a crossroads where she has to choose between NYADA and her role as Fanny. Kurt is attacked by a group of homophobes.