In the fantasy role playing game ''Everlot,'' the players are being tormented by a mysterious player calling himself "the Wraithmaster." Back in real life, Ron is hoping to impress [[Recap/KimPossibleS2E2GrudgeMatch Zita Flores]] and, hearing her talk about her progress in the game, claims he plays it and has an item she is seeking, causing her to invite him to join her for a session. Though his initial attempts to play meet with failure, he soon learns the game thanks to Wade, and helps Zita obtain the Aspen Power Wand of New Forest, while also earning the enmity of the Wraithmaster in the process, and the jealousy of Malcolm Nevious, a fellow Everlot player.

While Kim is having dinner with her family, Zita arrives at Bueno Nacho to invite Ron to a gathering of Everlot players. When they get there, they find only an empty warehouse, with strange devices attached to their heads, causing them to end up in the game for real. Meanwhile, Kim investigates the theft of the devices, known as "immersion caps," and when she learns the head scientist is the father of Malcolm, she makes the connection.

She and Wade make their way into the game to rescue the two, who soon learn Malcolm & the Wraithmaster are one and the same Ron & Zita attempt to rescue the Wraithmaster's prisoners, but even with Kim & Wade's help, they are easily defeated by the villain until Rufus uses Jim & Tim's computer to access the game, becoming the mythical Tunnel Lord. Using the fight as a distraction, Kim frees the other players, who use a rule in the game and give their power to Zita, granting her the strength to vanquish the Wraithmaster. With peace restored, everyone leaves, except Ron, who convinces Malcolm to join drama club (since he has the shirts), then celebrates his victory with the villain's sword.

!!This episode provides examples of:
* AesopAmnesia: Ron seems to have forgotten the lesson he learned in [[Recap/KimPossibleS2E2GrudgeMatch Grudge Match]], i.e., that he should just be himself around Zita, and instead pretends to be a skilled Everlot player to impress her.
* ArtShift: The scenes in ''Everlot'' are drawn in a more crude, 8-bit like style.
* BarrierBustingBlow: Rufus blows the door to the Wraithmaster's castle open during his BigDamnHeroes moment.
* BigDamnHeroes: Rufus, the Tunnel Lord, blows the door open during the heroes' darkest hour.
* {{BFS}}: Both Rufus and Malcolm use one of these.
* ButHeSoundsHandsome: Malcolm seems all to eager to compliment the Wraithmaster while everyone else thinks he's a griefer.
* CurbStompCushion: Ultimately, Kim, Ron, Wade and Zita aren't able to overcome the Wraithmaster. However, they give an excellent showing by giving him a good bruising in the middle of his own fortress.
* DoesThisRemindYouOfAnything: When Rufus and Malcolm have a... ''sword enlarging'' contest.
* EverythingTryingToKillYou: Ron's first attempt at the game involves him dying over and over, including being killed by ''picking flowers.''
* TheFairFolk: Kim's character in Everlot is a Spritekin, which looks a lot like a little fairy.
* {{Foreshadowing}}: At the beginning, the Wraithmaster asks who could possibly defeat him. [[GilliganCut Cut to Ron and Rufus having a swordfight with toothbrushes]]. Rufus wins.
* GrievousHarmWithABody: After losing his sword, the Wraithmaster attempts to battle the Tunnel Lord using Ron as a weapon.
* HeroOfAnotherStory: What sort of adventures did Rufus go on in Everlot to become the Tunnel Lord?
* InsideAComputerSystem: The Wraithmaster traps Ron and Zita in Everlot using a virtual reality headset.
* KingInTheMountain: The Tunnel Lord is [[UltimateGamer386 a quasi-mythical player]] of extraordinary power that many hope will return to save Everlot InItsHourOfNeed, but he hasn't logged on in a long time.
* LargeAndInCharge: A player avatar's size appears to be consistent with the character's power level. The Wraithmaster and the Tunnel Lord, two of the most powerful player avatars, tower above most other players, and after being given the powers of all the players being held captive, Zita ends up dwarfing Malcolm.
* NamesToRunAwayFromReallyFast: The '''Wraithmaster.'''
* NiceJobBreakingItHero: In a very minor point, Kim and Ron end up tripping up Rufus as the latter is taking on Malcolm. As Rufus is gaining the upper hand in the fight, Kim tries to free the prisoners and asks Ron's help to turn the key, which in turn puts Ron out in the open in the middle of Rufus and Malcolm's duel just as Rufus disarms Malcolm. [[GrievousHarmWithABody Cue Malcolm grabbing Ron and using him as an improvised weapon]], making Rufus hesitate as he doesn't want to hurt his friend. However, this also leads to Ron convincing the captive ''Everlot'' players to give their powers to Zita, who finishes off the Wraithmaster.
* NotSoInvincibleAfterAll: Up until the climax, the Wraithmaster was practically unstoppable, capturing countless players and bringing them to his castle to force them to grant him their powers. He gets outwitted at certain points by Zita and Ron, and then the cracks begin to show when he gets a sound bruising when the heroes team up to attack him, though he still defeats them ultimately. Enter Rufus, who takes him on one-on-one and was starting to win before Malcolm was disarmed and decided to use Ron as a weapon. Then Zita gets powered up by all of the other players, growing more powerful than Malcolm and defeating him once and for all.
* OneHandedZweihander: Due to being on horseback for much of the time, the Wraithmaster wields his massive sword with one hand, a fighting style he maintains when fighting on foot. As a result of the disparity in power between him and his opponents, the style remains fairly effective and allows him to spell cast with his off hand. He switches to two-handed fighting when confronted with the Tunnel Lord, who proves to be more than a match for him.
* RedBaron: Most players are known by their real names. Others, such as Malcolm and Rufus, are known almost exclusively by their in-game nicknames as the Wraithmaster and the Tunnel Lord respectively.
* ResizedVocals: Kim's spritekin avatar has a higher pitched voice when she talks in-game.
* RPGEpisode: Ron and Zita find themselves trapped in the RPG ''Everlot''.
* ShoutOut: The magic words used to fuse the Sword of Elsinore and the Aspen Power Wand are from ''Film/BedknobsAndBroomsticks''.
* SorcerousOverlord: Parodied with the Wraithmaster/Malcolm, who treats the game of ''Everlot'' with SeriousBusiness.
* SwappedRoles:
** As a Spritekin, Kim's character is too small and weak to even turn a key without Ron's help, and she is left to distract Malcolm while the more experienced RPG players take him on directly, and she even clumsily gets caught in a chandelier rope while dropping it on him.
** When the Tunnel Lord enters the fray, Kim and Ron take more support roles and have to maneuver the field around much larger opponents while Rufus tackles the main villain head-on.
* UltimateGamer386: The Tunnel Lord, played by Rufus, has this role in ''Everlot''.
* WeCanRuleTogether: Malcolm offers Zita this when she's his captive in Everlot, but she refuses.
* WhamShot: As Kim and Wade try to find a way out of their situation and Zita refuses Malcolm's offer to rule by his side, the door to the room gets blown open as other players realize that it's the [[BigGood Tunnel Lord]]. The smoke clears, revealing the Tunnel Lord - ''Rufus''.
* WinToExit: In order to leave the game, Ron and Zita must win. Taking off the immersion caps before they win has dire consequences for them, and if they don't win, they'll stay trapped in ''Everlot''.
* YouHaveGotToBeKiddingMe: Ron's reaction is a "No way!" to finding out that Rufus is the legendary Tunnel Lord.
* YouNeverDidThatForMe: While waiting for Zita at Bueno Nacho, Ron tells Rufus to knock off the gross stuff, since they're entertaining a lady. Kim then points out that he never asks Rufus to do that when she's around.