The story begins with three Aliens in human form preparing for a ritual to feed the Fog Mother's "siblings". The Fog Mother last came to earth during the Prehistoric Age and is the cause of the extinction of the dinosaurs. Kenji and his kid sister are in the mountains, investigating all the deaths of animals and trees there. The Fog Mother sends the three aliens, "Gorai", "Zuu", and "Agito" to kidnap Kenji's baby sister for the sacrifice.
as Kouji Segawa · Kamen Rider J
as Kana Kimura
as Cobra Otoko Garai
as Hachi Onna Zuu
as Tokage Otoko Agito
as Fog Mother (voice)
as Narrator (voice) / Earth Dwellers
as Berry (voice)
as Earth Spirit
as Earth Spirit
