| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Taste of Evil |
April 21, 1971
BBC One
|
50 | |
| S04E02 | To Lay a Ghost |
April 28, 1971
BBC One
|
50 | |
| S04E03 | This Body Is Mine |
May 5, 1971
BBC One
|
50 | |
| S04E04 | Deathday |
May 12, 1971
BBC One
|
50 | |
| S04E05 | The Sons and Daughters of Tomorrow |
May 19, 1971
BBC One
|
50 | |
| S04E06 | Welcome Home |
May 26, 1971
BBC One
|
50 | |
| S04E07 | The Last Witness |
June 2, 1971
BBC One
|
50 | |
| S04E08 | The Man in My Head |
June 9, 1971
BBC One
|
50 | |
| S04E09 | The Chopper |
June 16, 1971
BBC One
|
50 | |
| S04E10 | The Uninvited |
June 23, 1971
BBC One
|
50 | |
| S04E11 |
The Shattered Eye
series finale
|
June 30, 1971
BBC One
|
50 |
No artwork of this type.
No artwork of this type.
No artwork of this type.