Metalocalypse: Army of the Doomstar [Blu-ray]

Dethklok is fresh off rescuing Toki Wartooth and dealing with the aftermath of discovering there's more to life than alcohol, drugs, and music. They've realized that they're more than bandmates; they're brothers. On top of this, they're the potential saviors of the world with a catch. They have to write the Song of Salvation to fulfill The Prophecy, and Nathan Explosion's ego is so severely damaged that he can't come up with the lyrics.