Metalocalypse: The Doomstar Requiem - A Klok Opera (2013)

Plot

Toki and Abigail find themselves imprisoned by the ruthless Magnus Hammersmith and the Metal Masked Assassin. Meanwhile, Dethklok's other members attempt to go about their lives, masking their inner turmoil. However, as guilt begins to weigh heavily on them and their fanbase grows restless over Toki's disappearance, the band comes to a crucial realization. They cannot ignore their bond any longer and must devise a plan to rescue their brother from his captors. The stakes are high as they confront their emotions and the challenges ahead.