Ep. 17: Discover the hidden secret belonging to Ken
Aired on April 23, 1974
Episodes
- Ep. 13 · Confrontation! The Undersea City
- Ep. 14 · The Great Buddha Disappeared Into the Darkness
- Ep. 15 · The Art Gallery Mystery!
- Ep. 16 · A murder record and a terrifying melody unfold in this episode
- Ep. 17 · Discover the hidden secret belonging to Ken
- Ep. 18 · A significant breakout operation occurs on the prison island
- Ep. 19 · Bank Gang - Caron's in Danger!
- Ep. 20 · Ken acquires a romantic partner
- Ep. 21 · Caron's Present