| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S12E01 | Episode 1 |
April 14, 2017
BBC One
|
30 | |
| S12E02 | Episode 2 |
April 21, 2017
BBC One
|
30 | |
| S12E03 | Episode 3 |
April 28, 2017
BBC One
|
30 | |
| S12E04 | Episode 4 |
May 5, 2017
BBC One
|
30 | |
| S12E05 | Episode 5 |
May 12, 2017
BBC One
|
30 | |
| S12E06 | Episode 6 |
May 19, 2017
BBC One
|
30 | |
| S12E07 | Episode 7 |
May 26, 2017
BBC One
|
30 | |
| S12E08 | Episode 8 |
June 2, 2017
BBC One
|
30 | |
| S12E09 | Episode 9 |
June 9, 2017
BBC One
|
30 | |
| S12E10 | Episode 10 |
June 16, 2017
BBC One
|
30 | |
| S12E11 | Episode 11 |
June 23, 2017
BBC One
|
30 | |
| S12E12 | Episode 12 |
BBC One
|
30 | |
| S12E13 | Episode 13 |
September 22, 2017
BBC One
|
30 | |
| S12E14 | Episode 14 |
September 29, 2017
BBC One
|
30 | |
| S12E15 | Episode 15 |
October 6, 2017
BBC One
|
30 | |
| S12E16 | Episode 16 |
October 13, 2017
BBC One
|
30 | |
| S12E17 | Episode 17 |
October 18, 2017
BBC One
|
30 | |
| S12E18 | Episode 18 |
October 20, 2017
BBC One
|
30 | |
| S12E19 | Episode 19 |
October 23, 2017
BBC One
|
30 | |
| S12E20 | Episode 20 |
October 30, 2017
BBC One
|
30 | |
| S12E21 | Episode 21 |
November 6, 2017
BBC One
|
30 | |
| S12E22 | Episode 22 |
November 24, 2017
BBC One
|
30 | |
| S12E23 | Episode 23 |
December 1, 2017
BBC One
|
30 | |
| S12E24 |
Episode 24
season finale
|
December 8, 2017
BBC One
|
30 |
No artwork of this type.
No artwork of this type.
No artwork of this type.