Season 1 (1978)
5.71 avg 85 episodes 6.6 → 7.9
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Attack of the Space Terrapin | 6.6 | 53 |
| 2 | Rescue of the Astronauts | 7.3 | 38 |
| 3 | The Space Mummy | 4.9 | 32 |
| 4 | The Space Serpent | 4.2 | 28 |
| 5 | Ghost Ship from Planet Mir | 6.7 | 32 |
| 6 | Big Robot Gold Grab | 6.1 | 26 |
| 7 | Ace from Outer Space | 3.6 | 25 |
| 8 | Fearful Sea Anemone | 3.9 | 23 |
| 9 | Jupiter Moon Menace | 3.5 | 24 |
| 10 | Swarm of Robot Ants | 6.2 | 23 |
| 11 | Space Rocket Escort | 3.1 | 24 |
| 12 | Beast with a Sweet Tooth | 3.2 | 25 |
| 13 | Perilous Pleasure Cruise | 5.9 | 21 |
| 14 | The Thing with 1,000 Eyes | 6.2 | 22 |
| 15 | Microfilm Mystery | 3.1 | 21 |
| 16 | The Alien Beetles | 3.1 | 21 |
| 17 | Whale Joins G-Force | 3.3 | 20 |
| 18 | Mad New Ruler of Spectra | 6.2 | 20 |
| 19 | The Sea Dragon | 3.2 | 21 |
| 20 | Magnetic Attraction | 6.0 | 19 |
| 21 | The Musical Mummy | 5.9 | 22 |
| 22 | The Fiery Lava Giant | 6.7 | 21 |
| 23 | The Bat Ray Bombers | 6.6 | 20 |
| 24 | Race Against Disaster | 6.7 | 21 |
| 25 | The Ghostly Grasshopper | 6.6 | 24 |
| 26 | The Galaxy Girls | 6.3 | 23 |
| 27 | Curse of the Cuttlefish Part 1 | 7.2 | 20 |
| 28 | Curse of the Cuttlefish Part 2 | 5.8 | 20 |
| 29 | Demons of the Desert | 6.5 | 20 |
| 30 | Siege of the Squids | 6.6 | 21 |
| 31 | Orion, the Wonder Dog of Space | 6.6 | 19 |
| 32 | The Fierce Flowers Part 1 | 8.1 | 20 |
| 33 | The Fierce Flowers Part 2 | 5.5 | 18 |
| 34 | The Space Rock Concert | 6.3 | 20 |
| 35 | Prisoners in Space | 6.7 | 18 |
| 36 | Victims of the Hawk | 7.5 | 18 |
| 37 | Raid on Riga | 7.3 | 18 |
| 38 | Seals of Sytron | 5.9 | 18 |
| 39 | Giant Gila Monster | 6.8 | 18 |
| 40 | The Capture of the Galaxy Code | 3.3 | 21 |
| 41 | Raid on a Nearby Planet | 5.9 | 19 |
| 42 | Keyop Does It All | 5.2 | 18 |
| 43 | Peaks of the Planet Odin | 5.6 | 18 |
| 44 | The Sky Is Falling! Part 1 | 7.8 | 19 |
| 45 | The Sky Is Falling! Part 2 | 3.4 | 20 |
| 46 | Raid of the Red Scorpion | 6.6 | 18 |
| 47 | Mammoth Shark Menace | 7.5 | 17 |
| 48 | Fastest Gun in the Galaxy | 7.6 | 18 |
| 49 | Giant from the Planet Zyr | 5.9 | 18 |
| 50 | Secret Island | 2.8 | 20 |
| 51 | Giant Space Bat | 5.8 | 18 |
| 52 | Attack of the Alien Wasp | 6.6 | 21 |
| 53 | Decoys of Doom | 8.1 | 18 |
| 54 | Zoltar Strikes Out | 6.4 | 18 |
| 55 | The Great Brain Robbery | 6.0 | 18 |
| 56 | Raid of the Space Octopus | 5.9 | 18 |
| 57 | Silent City | 5.8 | 17 |
| 58 | Peril in the Pyramids | 7.2 | 18 |
| 59 | Rage of the Robotoids | 6.7 | 19 |
| 60 | The Alien Bigfoot | 7.2 | 19 |
| 61 | Invasion of the Locusts | 7.2 | 18 |
| 62 | The Space Safari | 3.1 | 19 |
| 63 | Museum of Mystery | 3.4 | 20 |
| 64 | Peril of the Praying Mantis | 6.1 | 18 |
| 65 | The Awesome Ray Force | 2.9 | 19 |
| 66 | The Duplicate King | 2.9 | 19 |
| 67 | Defector to Spectra | 6.6 | 18 |
| 68 | Panic of the Peacock | 7.4 | 18 |
| 69 | Mission to Inner Space | 7.0 | 18 |
| 70 | Spectra Space Spider | 5.8 | 18 |
| 71 | Super Space Spies | 6.5 | 18 |
| 72 | Cupid Does It to Keyop | 2.4 | 19 |
| 73 | Tentacles from Space | 5.5 | 17 |
| 74 | Island of Fear | 4.7 | 17 |
| 75 | The Awesome Armadillo | 5.4 | 17 |
| 76 | Invasion of the Space Center Part 1 | 3.4 | 19 |
| 77 | Invasion of the Space Center Part 2 | 7.4 | 17 |
| 78 | Save the Space Colony | 6.6 | 18 |
| 79 | Charioteers of Changu | 7.0 | 15 |
| 80 | Vacation on Venus | 6.9 | 16 |
| 81 | Rockets Out of Control | 5.2 | 17 |
| 82 | G-Force Defector | 2.5 | 17 |
| 83 | Strike at Spectra | 6.0 | 18 |
| 84 | G-Force in the Future | 6.5 | 17 |
| 85 | The Conway Tape Tap | 7.9 | 20 |
