Ep. 10: Fight at the Holy Cave.
Ipinalabas noong Hulyo 9, 1981
10
Mga Episode
- Ep. 6 · The Underground City
- Ep. 7 · Invitation to the Secret Base.
- Ep. 8 · Crisis of the Underground Explosion
- Ep. 9 · Approaching the Mystery of the Big Cave.
- Ep. 10 · Fight at the Holy Cave.
- Ep. 11 · Are the Millennium Thieves...Friend or Foe!?
- Ep. 12 · The Secret of the Telescope
- Ep. 13 · Escape in the Morning Mist
- Ep. 14 · The Secret of the Queen