| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Hannah |
January 4, 2010
BBC One
|
45 | |
| S04E02 | Roberts |
January 5, 2010
BBC One
|
45 | |
| S04E03 | Foster |
January 6, 2010
BBC One
|
45 | |
| S04E04 | Guile |
January 7, 2010
BBC One
|
45 | |
| S04E05 | Mills |
January 8, 2010
BBC One
|
45 | |
| S04E06 | Saunders |
January 11, 2010
BBC One
|
45 | |
| S04E07 | Boyd |
January 12, 2010
BBC One
|
45 | |
| S04E08 | Wilson |
January 13, 2010
BBC One
|
45 | |
| S04E09 | Campbell |
January 14, 2010
BBC One
|
45 | |
| S04E10 | Cole |
January 15, 2010
BBC One
|
45 | |
| S04E11 | Haigh |
January 18, 2010
BBC One
|
45 | |
| S04E12 | Page |
January 19, 2010
BBC One
|
45 | |
| S04E13 | Burnley |
January 20, 2010
BBC One
|
45 | |
| S04E14 | Taylor |
January 21, 2010
BBC One
|
45 | |
| S04E15 | Mercer |
January 22, 2010
BBC One
|
45 | |
| S04E16 | Galloway |
January 25, 2010
BBC One
|
45 | |
| S04E17 | Cappleman |
January 26, 2010
BBC One
|
45 | |
| S04E18 | Celland |
January 27, 2010
BBC One
|
45 | |
| S04E19 | Ward |
January 28, 2010
BBC One
|
45 | |
| S04E20 |
Wall
season finale
|
January 29, 2010
BBC One
|
45 |
No artwork of this type.
No artwork of this type.
No artwork of this type.