| Title | Season | Episode # | First Aired |
|---|---|---|---|
| The Mysterons | 1 | 1 | 29/Sep/67 |
| Winged Assassin | 1 | 2 | 06/Oct/67 |
| Big Ben Strikes Again | 1 | 3 | 13/Oct/67 |
| Manhunt | 1 | 4 | 20/Oct/67 |
| Avalanche | 1 | 5 | 27/Oct/67 |
| White as Snow | 1 | 6 | 03/Nov/67 |
| The Trap | 1 | 7 | 10/Nov/67 |
| Operation Time | 1 | 8 | 17/Nov/67 |
| Spectrum Strikes Back | 1 | 9 | 24/Nov/67 |
| Special Assignment | 1 | 10 | 01/Dec/67 |
| The Heart of New York | 1 | 11 | 08/Dec/67 |
| Lunarville 7 | 1 | 12 | 15/Dec/67 |
| Point 783 | 1 | 13 | 22/Dec/67 |
| Model Spy | 1 | 14 | 29/Dec/67 |
| Seek and Destroy | 1 | 15 | 05/Jan/68 |
| Renegade Rocket | 1 | 16 | 19/Jan/68 |
| Crater 101 | 1 | 17 | 26/Jan/68 |
| Shadow of Fear | 1 | 18 | 02/Feb/68 |
| Dangerous Rendezvous | 1 | 19 | 09/Feb/68 |
| Fire at Rig 15 | 1 | 20 | 16/Feb/68 |
| Treble Cross | 1 | 21 | 23/Feb/68 |
| Flight 104 | 1 | 22 | 01/Mar/68 |
| Place of the Angels | 1 | 23 | 08/Mar/68 |
| Noose of Ice | 1 | 24 | 12/Mar/68 |
| Expo 2068 | 1 | 25 | 26/Mar/68 |
| The Launching | 1 | 26 | 02/Apr/68 |
| Codename Europa | 1 | 27 | 09/Apr/68 |
| Inferno | 1 | 28 | 16/Apr/68 |
| Traitor | 1 | 29 | 23/Apr/68 |
| Flight to Atlantica | 1 | 30 | 30/Apr/68 |
| Attack on Cloudbase | 1 | 31 | 07/May/68 |
| The Inquisition | 1 | 32 | 14/May/68 |