The episode was about the gang’s efforts to cheer up a suicidal fat guy named Neil, cruelly nicknamed “Fat Neil.” They decided to play a great game of Dungeons & Dragons with Neil that would be moderated by Abed. Pierce was upset that he was left out (because he insensitive and would upset Neil). He found the gang and joined them anyway, as the gang’s villain. He had replaced Chang as the evil one left out of the group. In the end, Neil was saved by Pierce, who didn't learn any lessons, and we were entertained. It is going to be a while before we see Pierce in a good light again, but he makes a great villain, so that’s good.
That was what happened, plotwise. This episode was more about them playing the game, the one-liners, Chang showing up to play in blackface, and much more. The whole intro was a Lord of the Rings reference. They changed the theme song to play the tune of the regular song, but it sounded like fantasy adventure music. It was really clever. Leeard still thinks D&D is for losers though. This was the best episode of Community since it came back from the break. It had heart and a whole lot of humor. Ern watched it twice.
Episode Grade: A
If you missed it and you've seen the show before, watch it on hulu. It's a great episode, but it doesn't do much for new watchers who won't understand the characters.