| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S21E01 | Target |
February 15, 1975
BBC One
|
25 | |
| S21E02 | Seven for a Secret - Never to be Told |
February 22, 1975
BBC One
|
25 | |
| S21E03 | It's a Gift |
March 1, 1975
BBC One
|
25 | |
| S21E04 | Black Monday |
March 8, 1975
BBC One
|
25 | |
| S21E05 | Baubles, Bangles and Beads |
March 15, 1975
BBC One
|
25 | |
| S21E06 | On a Moody Complaint |
March 22, 1975
BBC One
|
25 | |
| S21E07 | Looters Ltd |
March 29, 1975
BBC One
|
25 | |
| S21E08 | The Hired Man |
April 5, 1975
BBC One
|
25 | |
| S21E09 | For Better, for Worse |
April 12, 1975
BBC One
|
25 | |
| S21E10 | A Slight Case of Love |
April 19, 1975
BBC One
|
25 | |
| S21E11 | Pot of Gold |
April 26, 1975
BBC One
|
25 | |
| S21E12 | Chain of Events |
May 3, 1975
BBC One
|
25 | |
| S21E13 |
Conspiracy
season finale
|
May 10, 1975
BBC One
|
25 |
No artwork of this type.
No artwork of this type.
No artwork of this type.