Season 2
Artwork
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | Étude in Black | Sep 17, 1972 |
| 2 |  | The Greenhouse Jungle | Oct 15, 1972 |
| 3 |  | The Most Crucial Game | Nov 5, 1972 |
| 4 |  | Dagger of the Mind | Nov 26, 1972 |
| 5 |  | Requiem for a Falling Star | Jan 21, 1973 |
| 6 |  | A Stitch in Crime | Feb 11, 1973 |
| 7 |  | The Most Dangerous Match | Mar 4, 1973 |
| 8 |  | Double Shock | Mar 25, 1973 |