The Slushie War has commenced at McKinley High, but for the first time, Finn and Quinn are on the receiving end. Now that they are in glee club and their pregnancy secret is out, their status has dropped.
Emma and Ken ask Will to give them dance lessons to a mash-up of their two varied song choices for the first dance at their wedding. In Emma's private lesson, she falls on top of Will in her long train.
The football team refuses to follow Finn's lead on the field. Yet Coach Ken is mad that Puck is skipping practice to work on something with glee club, so he schedules more football practice so that it coincides with glee.
Meanwhile, Puck works with Rachel on a song in her bedroom but he cuts it short to make out with her. He pursued Rachel because his mother asked him to date a Jewish girl. Yet, while kissing him, Rachel imagines that Puck is Finn. She makes up an excuse that she wouldn't date anyone who wasn't able to sing lead.
The next day at rehearsal, Puck performs a solo and Finn notices that he is singing to Rachel. Yet he doesn't see that Quinn is clearly smitten with Puck.
Throwing slushies on Finn and Quinn, the football team threatens him to quit glee for football.
After one date with local anchorman Rod, Sue is in love. When he tells her that he likes to swing, Sue asks Will for a swing dance lesson. The rift between her and Will seems to have faded.
Ken admits to Will that he's making his football players choose his team over glee because he knows that Emma is still in love with him. Will agrees to not lead on Emma, but Ken refuses to change his extra practice.
With Rachel now on his arm in front of the school, Puck is on the receiving end of the slushie. Puck hates the humiliation, so he chooses football over glee and ends his relationship with her.
Most of the guys choose glee over football, except Finn. Puck returns for Rachel. Finn shows up in the halls with a slushie but he's unable to throw it on any of the glee kids even though his teammates will kick the crap out of him. Yet Curt "takes one for the team" by doing it to himself. Curt shows Finn that his football buddies wouldn't have done that for him.
Sue shows up at the news studio in a zoot suit to find Rod kissing his co-anchor, whom he took to the swing competition the previous year. Rod explains that he's not exclusive. This doesn't sit well with Sue.
Rachel breaks up with Puck. She knows he's in love with Quinn, and he knows she's not over Finn. Rachel had hoped to make Finn jealous.
Finn tells Coach Ken that he wants to do both football and glee, and Ken agrees to cancel the extra practice.
Sue returns to take her anger out on Will. She also fires Quinn from the Cheerios.
Will tells Emma that he cannot mash-up her and Ken's songs because they don't blend together. She understands.
Finn rejoins glee, but Quinn is devastated that she's no longer a cheerio.