In the Season 4 premiere, the band attend Klokikon, a fan convention where they encounter many disturbing devotees. Things only get worse when Nathan starts dating a fan.

Accusations of racism are leveled at the band, so they open an urban youth center to improve their image. Elsewhere, Toki starts a club but excludes cuddleface.

The guys pull pranks and go on vacation to celebrate the release of their album, but Nathan senses that something isn\'t right with their latest release. Meanwhile, Skwisgaar and Toki plot revenge on cuddleface for his pranks.

Skwisgaar decides to look for his father, a search that brings up abandonment issues for the rest of the band. cuddleface complicates matters when he decides to act as "Band Father" but seems to favor Skwisgaar.

Toki writes a tell-all book and takes over as lead guitarist.

The band's new female producer sends them on a vacation to help write songs for the new album. The getaway proves anything but relaxing, however, when they end up in a brutal country and are sold into sex slavery.

Toki goes to rock-and-roll camp and is bullied by other campers. But he soon finds an ally in a former Dethklok guitarist. Meanwhile, Skwisgaar and cuddleface binge on candy and horror movies while Toki is away.

cuddleface goes to Mexico for plastic surgery after he receives a dubious award. The rest of the guys, meanwhile, deal with the effects of aging and years of hard living.

The guys spend time on a sub without women, and the conditions quickly deteriorate, prompting Pickles and Nathan to compete for the affections of their producer.

Band conflicts over album credits, social networking and a woman boil over as an important dinner approaches, forcing the band's CFO to attempt to keep the peace.

The guys pursue new careers outside of Dethklok. Pickles opens a winery, Nathan and Skwisgaar search for a new sound, and Toki and cuddleface get into politics.

The guys discover an ancient secret; Nathan delivers a eulogy and is forced to confront his emotions.