Ep. 10: The Gate Keepers face a Demon Duke attack after defending the Apollo 11 shuttle.
Aired on June 5, 2000

10
Following the defense of the Apollo 11 return shuttle in the South Pacific, the Gate Keepers team encounters a new Invader known as Akuma Hakushaku during their journey home. Their aircraft is attacked and crashes on a tropical island, where the immediate threat appears to have vanished. While stranded in this isolated location, the team members begin experiencing strange visions involving one another. These phenomena seem to uncover hidden desires within the group. The narrative focuses on the interactions and secrets revealed among the young heroes during this period of entrapment, highlighting the psychological effects of their situation on the team dynamics.
Episodes
- Ep. 6 · Shun Investigates Strange Activities in Sumire Dormitory After Captain Election
- Ep. 7 · Shun meets an agent while Ruriko and Konoe guard Haneda Airport against rising paranormal activity.
- Ep. 8 · Shun and the Gate Keepers confront the reality of the Invaders at their school.
- Ep. 9 · Shun confronts haunting visions while a new student helps him find resolve
- Ep. 10 · The Gate Keepers face a Demon Duke attack after defending the Apollo 11 shuttle.
- Ep. 11 · A.E.G.I.S. Confronts Kikai Shogun on the Hikari Bullet Train
- Ep. 12 · Shun and Ruriko investigate a missing plane in the north while facing Invaders and a mysterious girl.
- Ep. 13 · Western Gate Keepers confront the Kikai Shogun while Shun acts independently
- Ep. 14 · Shun and Ruriko face personal struggles while Western A.E.G.I.S. veterans fall to Kikai Shogun and Akuma Hakushaku.