| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S01E01 | Enemies of the Universe |
July 16, 1955
NBC
|
25 | |
| S01E02 | Atomic Peril |
July 23, 1955
NBC
|
25 | |
| S01E03 | Cosmic Vengeance |
July 30, 1955
NBC
|
25 | |
| S01E04 | Nightmare Typhoon |
August 6, 1955
NBC
|
25 | |
| S01E05 | War of the Space Giants |
August 13, 1955
NBC
|
25 | |
| S01E06 | Destroyers of the Sun |
August 20, 1955
NBC
|
25 | |
| S01E07 | Robot Monster from Mars |
August 27, 1955
NBC
|
25 | |
| S01E08 | The Hydrogen Hurricane |
September 3, 1955
NBC
|
25 | |
| S01E09 | Solar Sky Raiders |
September 10, 1955
NBC
|
25 | |
| S01E10 | S.O.S. Ice Age |
September 17, 1955
NBC
|
25 | |
| S01E11 | Lost in Outer Space |
September 24, 1955
NBC
|
25 | |
| S01E12 |
Captives of the Zero Hour
series finale
|
October 8, 1955
NBC
|
25 |
No artwork of this type.
No artwork of this type.