| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | A Killing Will Occur |
September 17, 1970
NBC
|
45 | |
| S04E02 | No Game for Amateurs |
September 24, 1970
NBC
|
45 | |
| S04E03 | The Happy Dreams of Hollow Men |
October 1, 1970
NBC
|
45 | |
| S04E04 | The People Against Judge McIntire |
October 8, 1970
NBC
|
45 | |
| S04E05 | Noel's Gonna Fly |
October 15, 1970
NBC
|
45 | |
| S04E06 | The Lonely Way to Go |
October 22, 1970
NBC
|
45 | |
| S04E07 | Check, Mate: and Murder (1) |
October 29, 1970
NBC
|
45 | |
| S04E08 | Check, Mate: and Murder (2) |
November 5, 1970
NBC
|
45 | |
| S04E09 | Too Many Victims |
November 12, 1970
NBC
|
45 | |
| S04E10 | The Man on the Inside |
November 19, 1970
NBC
|
45 | |
| S04E11 | Backfire |
December 3, 1970
NBC
|
45 | |
| S04E12 | The Laying on of Hands |
December 10, 1970
NBC
|
45 | |
| S04E13 | This Could Blow Your Mind |
December 17, 1970
NBC
|
45 | |
| S04E14 | Blackout |
December 31, 1970
NBC
|
45 | |
| S04E15 | The Quincunx |
January 7, 1971
NBC
|
45 | |
| S04E16 | From Hrûska, with Love |
January 21, 1971
NBC
|
45 | |
| S04E17 | The Target |
January 28, 1971
NBC
|
45 | |
| S04E18 | A Killing at the Track |
February 4, 1971
NBC
|
45 | |
| S04E19 | Escape |
February 11, 1971
NBC
|
45 | |
| S04E20 | Love, Peace, Brotherhood, and Murder |
February 18, 1971
NBC
|
45 | |
| S04E21 | The Riddle in Room Six |
February 25, 1971
NBC
|
45 | |
| S04E22 | The Summer Soldier |
March 4, 1971
NBC
|
45 | |
| S04E23 | Accident |
March 11, 1971
NBC
|
45 | |
| S04E24 | Lesson in Terror |
March 18, 1971
NBC
|
45 | |
| S04E25 | Grandmother's House |
April 1, 1971
NBC
|
45 | |
| S04E26 |
Walls Are Waiting
season finale
|
April 15, 1971
NBC
|
45 |
No artwork of this type.
No artwork of this type.
