Ultraman Mebius Side Story: Ghost Rebirth S01 E01 STAGE I: The Graveyard of Darkness

In the Land of Light, the Ultra Brothers received the interrupted Ultra Sign sent by Hikari, which came from the Monster Graveyard. Obtaining Zoffy's approval, Ace and Taro departed to investigate the matter while Mebius, on his routine patrol, was quickly notified by Zoffy to join the investigation.