Ep. 17: The challenge of Ul Quorn
Aired on March 6, 1979
17
Episodes
- Ep. 13 · The planetary atmosphere vanishes
- Ep. 14 · The tragic Dark Planet
- Ep. 15 · The Law of the Watcher
- Ep. 16 · The Resurrected Planet
- Ep. 17 · The challenge of Ul Quorn
- Ep. 18 · The Dark Tribe from the Depth of the Earth
- Ep. 19 · The protagonist experiences isolation on an unfamiliar planet
- Ep. 20 · The Phantoms of the transparent Planet
- Ep. 21 · The mystery stone that sleeps in the galaxy