Rather than focusing on Casshern, this episode follows Dio and his quest to reestablish utopia by gathering wandering robots to form his army. During the gathering, a mysterious robot dressed heavily in tattered cloak barges in rambling about the death of Luna. It is revealed the robot’s name is Dune, a guardian assigned as Luna’s bodyguard. Leda attempts to dispose of Dune but in the end requires Dio’s help. In a fit of rage for being mistaken as Casshern, Dio viciously incapacitates Dune. As Dio, with Leda by his side, motivates his robot army with a speech, a crippled Dune once again wanders the lands mourning Luna's death.