-Schmidt recruits Winston to play some pranks at Cece's wedding--knowing that Winston is terrible at pranks, and will definitely go overboard and ruin the wedding.
-Winston does indeed go overboard, and ends up stuck in the heating ducts with a badger.
-Jess, Nick, and Winston all end up into the heating ducts, chasing the badger before it can ruin the wedding.
-However, before they can catch it, the heating ducts collapse, dumping Jess and Nick right in front of the assembled wedding crowd, right as Cece takes her vows.
-Cece reveals, mid-vow, that she can't go through with it--she's still in love with Schmidt.
-Shivrang admits that he's in love with someone else, as well--his ex-girlfriend Elaine (Taylor Swift). Shivrang and Elaine run off to elope.
-Nick and Jess consider whether their relationship might be a mistake, but ultimately, decide to stay together.
-Elizabeth and Cece demand that Schmidt choose between them. Schmidt runs off before making a decision.