"Advanced Advanced Dungeons & Dragons" is the tenth episode of the fifth season of Community, and the 94th episode overall in the series. It originally aired on March 20, 2014 on NBC. The episode was written by Matt Roller, and directed by Joe Russo. The episode marked the series writing debut of Roller and the final episode directed by Russo.

Critics gave the episode generally positive reviews, praising the exceptional sound design and action sequences that helped evoke a fantasy world. The episode received a 1.1/4 in the 18-49 rating/share, increasing slightly from the week before. 3.32 million American viewers watched this episode, increasing from the previous week's audience of 2.77 million viewers.

At a Save Greendale committee meeting, Professor Hickey (Jonathan Banks) learns that he was not invited to his 3-year-old grandson's birthday party. Hickey becomes irate that his son Hank Hickey (David Cross) continues to limit visiting time with his grandson, while spending all his time playing the role-playing game, Dungeons & Dragons. The group then decides to help father and son reunite through a rousing game of Dungeons & Dragons.

The group and a reluctant Hank meet at Abed's (Danny Pudi) apartment, where Abed reprises his role as the Dungeon Master. Abed describes the eight adventurers arriving in the troubled realm of Galindor, where they must vanquish an evil Necromancer who rules in a dark tower across a bridge. Hank, seeing through the group's contrived plan to reconcile father and son, mixes and redistributes each character's sheet. His character is now Tristram Steelheart, a Holy Cleric; Hickey is named Tiny Nuggins, a Halfling Thief; Britta (Gillian Jacobs) is Fibrosis, a Ranger; Shirley (Yvette Nicole Brown) is Crouton, a Half-orc Druid; Annie (Alison Brie) reprises her role as Hector the Well Endowed; Chang (Ken Jeong) is a Troll named Dingleberry; and Jeff (Joel McHale) is Sir Riggs Diehard, much to the delight of Dean Pelton (Jim Rash), who is his son, Joseph Gordon Diehard.

Hank rejects the group’s given mission and decides to head south instead. Annie attempts to lift Hank and carry him to the bridge, but Hank casts a fire spell in self-defense, dealing damage to Annie and also setting the bridge's rope supports on fire. The bridge is unable to hold the weight of the party and they plummet into a raging river below, splitting the group apart with Jeff, Hickey, Shirley, and Annie washing up on the left fork of Skull river, and the remaining party on the right. Hank threatens to quit, so to prevent him from doing so, Hickey wagers that if he kills the Necromancer first, he is allowed to come to his grandson's birthday. Hank accepts, stating that if he wins Hickey will not go to the family's Christmas or Thanksgiving. The parties then go into separate rooms.

After being washed ashore, Hickey's impatience and new-found motivation to win the game leads him to delve into the neighboring jungle alone, encountering a hostile patrol of Hobgoblins. Shirley, Jeff, and Annie follow while the Hobgoblins, alerted to Hickey's presence, charge at him with spears. Shirley uses a spell to entangle four of the charging Hobgoblins. The two remaining Hobgoblins, however, fire arrows at Crouton, fatally wounding her. Shirley blames her character's death on Hickey and leaves the apartment. Hickey's group follows the fleeing Hobgoblins to the Gob Shack and kills them. Five Goblins are nearby and the group ambushes them, killing three and taking two alive. Hickey interrogates the two Goblins, both of whom are played by Abed. Hickey manages to wear down their resolve, and one of the Goblins confesses the location of the Black Tower.

Meanwhile, Hank casts a healing spell on Fibrosis, attempting to coax her into helping him. He reveals that he resents his father because he was absent during his birthdays. Hank's party then encounters giant, flying, Sky-spiders. Hank casts a spell to speak with the spiders and successfully achieves a non-combative resolution. The Sky-spiders fly his party closer and give them directions to the Tower. Both parties simultaneously arrive at the Black Tower and attempt to intimidate the other into yielding. An emotional Dean attempts to defect so that he can reunite with his father Jeff, who draws his sword. The dean nevertheless approaches to hug Jeff and impales himself on Jeff's sword. The dean's death breaks the standoff. The parties decimate each other in a combination of spells, sword-fighting, and Chang's loud, confused Troll noises, with only Hank and Hickey surviving the melee.

Hank and Hickey enter the Tower while still fighting each other, reaching the Necromancer's workshop. The Necromancer, however, has fled while the parties spent an hour fighting over who gets to kill him. Hank and Hickey complain to Abed over the lack of a resolution, but Abed says it is their own fault for delaying the battle by infighting. Continuing to fight with each other, Hank and Hickey attempt to divide the Necromancer's loot before following him out of the Black Tower. With only the two of them remaining in the game to work together, Jeff and the group leave the apartment saying "that's the best most fathers and sons can do."