This season featured several musicians as voice actors, such as Silenoz and ICS Vortex of Dimmu Borgir, Angela Gossow and Michael Amott of Arch Enemy; Samoth, Ihsahn and Trym Torson of Emperor; Exodus, Devin Townsend, Mike Keneally, Richard Christy, Gene Hoglan, Marty Friedman, George "Corpsegrinder" Fisher of Cannibal Corpse, Marco Minnemann, Mike Patton of Faith No More, and Warrel Dane and Steve Smyth of Nevermore.

Meanwhile, one particular fan is kidnapped by roadies and tortured at Mordhaus for infringing the group's songs, only to meet Edgar Jomfru from episode "Mordland".

The band's look-a-like clone doubles, who use the concert as an opportunity to capture intelligence on Dethklok are caught in the resulting eruption, and scalded beyond recognition.

With the help of Doctor Jonathon Twinkletits, apparently surviving the events of "PerformanceKlok", the band convinces Dr. Rockzo to kick his addiction.

Feeling bad for his brother, Pickles accepts Ofdenson's offer of making Seth head of Dethklok Australia (a position where the previous holders were brutally murdered).

As the band transform into their animal forms, Crozier is also exposed to Yopo and begins to have hallucinations of Cardinal Ravenwood as the rest of his team are killed by natives.

The governor of Florida promises to veto a bill to give Nathan Explosion a state holiday, and enraged fans abduct and murder him brutally, opening his position.

Murderface plans to create a "NASCAR-type Theatrical Hybrid Event", though he never elaborates on exactly what this will entail, he eventually has to speak at a press conference to explain, but gets nervous and Pickles gives him a "special pill" that "slows down your heart" but has Speed, Angel dust, a hint of coke, and a splash of acid to counteract the low.

Murderface not surprisingly has an enormously powerful reaction to the pill as he does not possess Pickles' near immunity to drugs, and he twitches and drools through his press conference.

The Tribunal then reviews the incident, revealing that it is being repeated around the country; the culprits are the Revengencers: the Metal Masked Assassin, Edgar Jomfru, and the teenager.

Dethklok reluctantly plans a charity concert for the fans maimed in the attacks, despite each member of the band simultaneously suffering from a summer cold.

In the chaos, the Metal Masked Assassin ambushes Offdensen after disguising himself as a Klokateer, and throws him through a window on the (at least) the third floor of the hospital, but lands on his feet without injury.

Guest voices: George "Corpsegrinder" Fisher of Cannibal Corpse and Exodus (Tom Hunting, Gary Holt, Rob Dukes, Jack Gibson, Lee Altus) Songs included: "Duncan Hills Coffee Jingle" and "Dethsupport" Nathan breaks up with his comatose girlfriend, Rebecca Nightrod, from episode "Girlfriendklok, after he finds out she is "canoodling" with billionaire hotel heir Walt Perkins.

Lavona attempts to use "The Loin Extractor" on Nathan at the next Dethklok concert, but Murderface sees the incoming device and leaps in front of it.

But he immediately sets his sights on taking Ofdensen's job as sole business manager of the band, leading to a fencing duel to the death between the two men.

", Pickles discovers that his former band, Snakes 'n Barrels, has reformed with a new lead singer, Rikki Kixx (voiced by Faith No More's Mike Patton), and are preparing for the SOBERTOWN USA No Drugs Allowed Sober Rock and Roll Show.

The drug also has another side effect: causing blue phosphorus snakes to shoot from every orifice of the user's body, them to go mad with rage; when they are exposed to bright lights, loud sounds, and pyrotechnics.

As the concert ignites the phosphorus snakes in the band, Toki starts beating the annoying fan (voiced by Marco Minnemann).

The audience is haunted by three of Snakes n' Barrels incarnated as monsters and Murderface seeks revenge on Toki for hacking into his website.

Guest voices: Mike Patton of Faith No More, Warrel Dane and Steve Smyth of Nevermore, Michael Amott of Arch Enemy, Marco Minnemann Toki and Skwisgaar are looking at a video, that Nathan recommended, of a man sucking his own penis, they all conclude that everything they do is really an attempt to get someone else to do that for them, and if they could do it themselves, they could retire from music.

We then see through Crozier's eyes flashes of five planets and stone tablets representing the five members of Dethklok, as well as a figure reminiscent of Selatcia wearing elaborate bone armor, while a voice ominously says, "You are mine now."

Edgar remembers his life before his brother's death, when he lived for Dethklok and is unable to pull the trigger before being set upon and mercilessly beaten by Klokateers.

Guest voice: George "Corpsegrinder" Fisher of Cannibal Corpse, Angela Gossow of Arch Enemy and Laraine Newman Songs included: "Black Fire Upon Us"