The band plays an ancient song which hasn't been heard in thousands of years which unexpectedly awakens a deadly Nordic lake troll and must compose the world's first death metal lullaby to return the beast to its slumber.

Dethklok decides to try their hand at standup comedy in order to avoid burning out on metal. Pickles remains traumatized by a heckler while the rest of the band learns that comedy is all about embracing the hate.

Mordhouse, the home of Dethklok, opens its gates to the public for the first time in celebration of International Dethfan Day. Will the band and their fans make it through the experience? Dethklok find themselves in potential trouble after two Internet geeks threaten to release the band's exclusive, one-time-only, fan song over the internet unless they give in to their demands.

Upon learning that they've once again earned too much money over the past year, the band tries to "donate" as much as they can to charity as a tax write-off. The guys also unwisely attempt fatherhood and play a landmark concert with the London Philharmonic Orchestra which ends with a killer laser light show.

Skwisgaar hosts the "Skwisgaar Skwigelf Advanced Hand Finger Wizard Master Class" pay-per-view event to promote sales of his new guitar line, which includes models such as the Skwisarmyatar and the Antfarmatar. The rest of the guys get inspired to also try their hand at endorsement deals. Metal legend King Diamond guest stars as Ronald Von Monoldburg.

Dethklok has an end of the quarter employee evaluation to find out who has been embezzling from the company. The patronizing evaluation start off with a pep talk and a corporate video that will have audiences and Dethfans alike vying for a spot on the Dethklok payroll.

Continually plagued by his stupidity, Nathan Explosion decides to attempt to earn his GED.

Toki tries to compensate for his adorable charm by over-brutalizing his intentions and actions.

Dr. Rockso and Toki's sudden friendship has the rest of Dethklok uneasy.

Dethklok is asked to host the American Pornography Awards, but Nathan's new controlling girlfriend puts a damper on the situation for the entire band.

The band is given a movie development deal.

Dethklok receives death threats from fans right before the first live performance of Dethwater. Krosier and Ravenwood attempt to take Dethklok out, with the help of an old enemies brother... With the secret army on the horizon waiting for the right moment to strike, will Dethklok make it through this?

Dethklok has withdrawn from the public eye, and fan suicide rates are climbing. The US government hatches a plan to bring the band out of hiding and restore world order.

Pickles gets a new PR lady who inflates his fame, prompting jealousy from his bandmates.

The band travels to the Amazon and learns about the native brutality of Nathan's ancestors.

When Nathan learns his ex-girlfriend has found a new love, he decides to return to dating.