| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S2021E01 | Rugby: The Cost of Concussion |
May 17, 2021
BBC One
|
29 | |
| S2021E02 | Christopher: The Boy Who Never Came Home |
June 7, 2021
BBC Cymru Wales
|
33 | |
| S2021E03 | Mayhill Riot |
July 21, 2021
BBC Cymru Wales
|
29 | |
| S2021E04 | Trapped Underground: The Gleision Mine Disaster |
September 15, 2021
BBC Cymru Wales
|
59 | |
| S2021E05 | When Would You Want to Die? |
October 20, 2021
BBC Cymru Wales
|
29 | |
| S2021E06 |
The Hidden World of Designer Dog Breeding
season finale
|
December 13, 2021
BBC Cymru Wales
|
30 |
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