Little is known about the on-air personalities involved with the show. Joseph Boland played the robot characters, Jon Gart was the organist, and Phil Tonken was the announcer.

Dantro, The Planet Man, was an agent of the League of Planets who uphold peace and fair play. He is a humanoid from Planeris Rex and he was the first agent to make contact with Earthmen.

The show was comprised of 15-minute episodes which aired on Saturday mornings and weekday afternoons, depending on the whim of the radio station carrying the show. Some stations aired back-to-back episodes to fill a 30-minute block of time.

The programs included in this collection are episodes 2, 3, and 5 through 27.

EPISODES:

2. Orbit the Moon

3. Cosmic Communicator

5. Marston to Attack Earth

6. Discussing Marston

7. Kidnapping Order

8. Billy and Jane Need Help

9. Hoping for a Miracle

10. Billy and Jane in Ship

11. Three D Dantro

12. Marston Dead

13. On a Scout Ship

14. Preparing to Blast Off

15. Discussing Venus

16. Back to the Prison Cell

17. Dantro, Help Us

18. Plot to Destroy Venus

19. Venus Minister - Traitor

20. Encounter with Pirates

21. Pirates Attack Dantro

22. Searching for Asteroid