Season
- Season 3 1954-12-11
- Season 2 1953-08-29
- Season 1 1951-07-07
Episode
- Episode 1: The Atomic Curtain
- Episode 2: Astro's Trial
- Episode 3: The Runaway Asteroid
- Episode 4: Suit Up For Death
- Episode 5: Mystery of the Mothball Fleet
- Episode 6: The Life Ray
- Episode 7: A Mighty Mite
- Episode 8: Ace of the Space Lanes
- Episode 9: The Asteroid Station
- Episode 10: The Grapes of Ganymede
- Episode 11: Assignment: Mercury
- Episode 12: Smugglers of Death
- Episode 13: The Mystery of the Missing Mail Ship
- Episode 14: The Gremlin of Space
- Episode 15: Terror in Space
- Episode 16: Spaceship of Danger
- Episode 17: The Magnetic Asteroid
- Episode 18: Danger in the Asteroid Belt
- Episode 19: False Alert
- Episode 20: The Space Projectile
- Episode 21: The Outpost of Terror
- Episode 22: Exercise for Death
- Episode 23: Ambush in Space
- Episode 24: The Stowaway
- Episode 25: A Fight for Survival (Assignment:Survival)
- Episode 26: Space Blindness
- Episode 27: Comet of Danger
- Episode 28: The Final Test
