The campaign showdown begins when Brittany and Blaine go head-to-head for Student Council President. Meanwhile, Kurt gets the internship of his dreams.

The school production of "Grease" is underway and Marley, Jake, Kitty and football player Ryder compete to play "Danny" and "Sandy." Meanwhile, former glee clubbers Mercedes and Mike, return to cast the play and Mr. Schuester struggles with a difficult decision.