Captain Scarlet heads up an international intelligence agency as they battle against the Mysterons, an alien species from Mars that vows vengeance after a misunderstanding with humans.
| Title | Time | |
|---|---|---|
| 1 | The Mysterons | 1967-09-29 |
| 2 | Winged Assassin | 1967-10-06 |
| 3 | Big Ben Strikes Again | 1967-10-13 |
| 4 | Manhunt | 1967-10-20 |
| 5 | Avalanche | 1967-10-27 |
| 6 | White as Snow | 1967-11-03 |
| 7 | The Trap | 1967-11-10 |
| 8 | Operation Time | 1967-11-17 |
| 9 | Spectrum Strikes Back | 1967-11-24 |
| 10 | Special Assignment | 1967-12-01 |
| 11 | The Heart of New York | 1967-12-08 |
| 12 | Lunarville 7 | 1967-12-15 |
| 13 | Point 783 | 1967-12-22 |
| 14 | Model Spy | 1967-12-29 |
| 15 | Seek and Destroy | 1968-01-05 |
| 16 | Renegade Rocket | 1968-01-19 |
| 17 | Crater 101 | 1968-01-26 |
| 18 | Shadow of Fear | 1968-02-02 |
| 19 | Dangerous Rendezvous | 1968-02-09 |
| 20 | Fire at Rig 15 | 1968-02-16 |
| 21 | Treble Cross | 1968-02-23 |
| 22 | Flight 104 | 1968-03-01 |
| 23 | Place of Angels | 1968-03-08 |
| 24 | Noose of Ice | 1968-03-12 |
| 25 | Expo 2068 | 1968-03-26 |
| 26 | The Launching | 1968-04-02 |
| 27 | Codename Europa | 1968-04-09 |
| 28 | Inferno | 1968-04-16 |
| 29 | Traitor | 1968-04-23 |
| 30 | Flight to Atlantica | 1968-04-30 |
| 31 | Attack on Cloudbase | 1968-05-07 |
| 32 | The Inquisition | 1968-05-14 |