Sue starts a smear campaign to take down her political foe this week, while Kurt rises above the negativity in the race for Student Council President. Puck confesses his feelings to Shelby and lets her in on Quinn's plan to get Beth back. A game of dodge ball turns ugly and Santana's mocking of Finn pushes him to call her a coward for hiding her sexuality. The two groups battle it out in the first ever McKinley High Mash-Off.