Season 1
- 1Treachery of Mars30 Dec 1950
- 2The Lethal Lady6 Jan 1951
- 3Intrigue in the Cabinet13 Jan 1951
- 4The Agra Ray20 Jan 1951
- 5The Ivy of Death27 Jan 1951
- 6Trouble on Saturn's Third Moon3 Feb 1951
- 7Solo Flight to Jupiter10 Feb 1951
- 8Cosmic Dedris Waring17 Feb 1951
- 9The Planos Epidemic24 Feb 1951
- 10Tunnel of Escape (aka: Tunnel of Death)3 Mar 1951
- 11The Perilous Sleep10 Mar 1951
- 12A Vacation at Lake Azure17 Mar 1951
- 13Theft of the Zeta Ray24 Mar 1951
- 14Blackmail on Saturn31 Mar 1951
- 15The Man in the Radurium Glove7 Apr 1951
- 16Under the Red Lake of Jupiter14 Apr 1951
- 17The Counterfeit Commander21 Apr 1951
- 18Mysterious Mission to Canali28 Apr 1951
- 19The Major's Dilemma5 May 1951
- 20Isolation in Space12 May 1951
- 21The Tourist Trap19 May 1951
- 22Dangerous Intrigue26 May 1951
- 23The Secret Injection2 Jun 1951
- 24The Treacherous Technicians9 Jun 1951
- 25Beyond the Rim of Space16 Jun 1951
- 26Race Against Death23 Jun 1951
- 27The Lost City of the Carnacans30 Jun 1951
- 28The Deadly Weapon7 Jul 1951
- 29The Legend of Wild Man's Ridge14 Jul 1951
- 30Way Station to the Stars21 Jul 1951
- 31The Hidden Reflector28 Jul 1951
- 32The Dangerous Discovery4 Aug 1951
- 33Spaceship on the Edge of Forever11 Aug 1951
- 34The Underwater Hideout18 Aug 1951
- 35A Big Wheel Named Ferris25 Aug 1951
- 36The Vindictive Brother1 Sep 1951
- 37Photograph of a Traitor8 Sep 1951
- 38The Couragous Coward15 Sep 1951
- 39The Theft of the Scrambler22 Sep 1951
- 40Prometheus Bound for Destruction29 Sep 1951
- 41Immediate Disaster6 Oct 1951
- 42Lunatics from the Future13 Oct 1951
- 43The Space Patrol Code Belt20 Oct 1951
- 44The Floating Image in Space27 Oct 1951
- 45Secret Peril3 Nov 1951
- 46The Parasite Disc10 Nov 1951
- 47The Secret of Terra17 Nov 1951
- 48Jungle of No Return24 Nov 1951
- 49Prison of Deadly Gas1 Dec 1951
- 50The Sacrifice8 Dec 1951
- 51Flight of the Galaxy15 Dec 1951
- 52Fair Exchange22 Dec 1951
- 53The Counterfeit Puzzle29 Dec 1951