Season 4
Artwork
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | The Code | Sep 28, 1969 |
| 2 |  | Numbers Game (aka The Key) | Oct 5, 1969 |
| 3 |  | The Controller (1) | Oct 12, 1969 |
| 4 |  | The Controller (2) | Oct 19, 1969 |
| 5 |  | Fool's Gold | Oct 26, 1969 |
| 6 |  | Commandante | Nov 2, 1969 |
| 7 |  | The Submarine | Nov 16, 1969 |
| 8 |  | Mastermind | Nov 23, 1969 |
| 9 |  | Robot | Nov 30, 1969 |
| 10 |  | Double Circle | Dec 7, 1969 |
| 11 |  | The Brothers | Dec 14, 1969 |
| 12 |  | Time Bomb | Dec 21, 1969 |
| 13 |  | The Amnesiac | Dec 28, 1969 |
| 14 |  | The Falcon (1) | Jan 4, 1970 |
| 15 |  | The Falcon (2) | Jan 11, 1970 |
| 16 |  | The Falcon (3) | Jan 18, 1970 |
| 17 |  | Chico | Jan 25, 1970 |
| 18 |  | Gitano (aka Toys) | Feb 1, 1970 |
| 19 |  | Phantoms | Feb 8, 1970 |
| 20 |  | Terror | Feb 15, 1970 |
| 21 |  | Lover's Knot | Feb 22, 1970 |
| 22 |  | Orpheus | Mar 1, 1970 |
| 23 |  | The Crane | Mar 8, 1970 |
| 24 |  | Death Squad | Mar 15, 1970 |
| 25 |  | The Choice | Mar 22, 1970 |
| 26 |  | The Martyr | Mar 29, 1970 |