| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Episode 1 |
October 28, 2012
BBC One
|
30 | |
| S04E02 | Episode 2 |
November 4, 2012
BBC One
|
30 | |
| S04E03 | Episode 3 |
November 11, 2012
BBC One
|
30 | |
| S04E04 | Episode 4 |
November 18, 2012
BBC One
|
30 | |
| S04E05 | Episode 5 |
November 25, 2012
BBC One
|
30 | |
| S04E06 |
Episode 6
series finale
|
December 1, 2012
BBC One
|
30 |
No artwork of this type.
No artwork of this type.