Annie and Professor Hickey work the Greendale bureaucracy to get a bulletin board back on the wall. Jeff, Chang, Shirley and Professor Duncan discover the challenges of planning a school dance.
Abed sets up a game of "Hot Lava" at the college as a going away present for Troy.
Annie gets Jeff to help her in the hunt for the "Asscrack bandit". One student returns from the dead, while Shirley comes with news of another persons death.
Jeff starts his position as a teacher. Abed gets the rest of the group to take a class about Nicolas Cage.
Evan and Paige's wedding is finally here but there are a few snags in the preparation. The bachelor and bachelorette parties both unexpectedly end up in Las Vegas. Cousin Owen arrives from Wisconsin for the celebration. And a figure from the past brings back memories for Hank and Evan.moreless
Michael returns to a case that he was working on prior to the accident, giving Captain Harper cause for concern. Meanwhile, Michael and Vega work an old homicide case and Dr. Lee provides an assist while Hannah prepares for the move to Oregon. And in the other reality, Michael and Bird investigate a suicide and Evans gives Michael some advice about whether he should go with Hannah.moreless
Dean Pelton directs a commercial starring the study group and a collection of the school's most colorful characters. Abed, meanwhile, shoots a behind-the-scenes documentary of the entire affair.