Dio’s mission to assemble a robot army is interrupted by the appearance of Dune, a formidable warrior who was once Luna’s bodyguard. Elsewhere, Casshern continues his search for Luna.

Despite his ragged condition, Dune continues his search for Luna. The robot once feared as the “God of Death” is ceaseless in his quest, but a rematch with Casshern puts his dream of a reunion on hold.

Casshern, Lyuze, and Ringo finally reach Luna’s castle, where they find countless robots hoping to be spared from the Ruin. Dune is among their ranks, but Luna’s treatment of her former protector is shocking.