If you are searching for the one that got away mini series, the version most people mean is the Welsh crime drama starring Elen Rhys and Richard Harrington. The quickest way to confirm you have the right show is to check for three things: Pembroke Dock, a murdered nurse, and the alternate Welsh title Cleddau.
Which The One That Got Away is this?
The title is easy to mix up because several unrelated dramas use similar wording. This one is the six-part Welsh crime thriller set around Pembroke Dock, with Elen Rhys and Richard Harrington playing detectives who are pulled into a new case with links to the past.
The Welsh crime drama starring Elen Rhys
Elen Rhys plays DI Ffion Lloyd and Richard Harrington plays DS Rick Sheldon. Their characters are not just paired for a routine investigation; they have a complicated personal history, which gives the case more tension than a standard "new murder, new suspects" setup.
The setting is another useful clue. If the listing mentions Pembroke Dock, a coastal Welsh community, and a police investigation shaped by old secrets, you are probably looking at the right series.
Its connection to the Welsh-language Cleddau
Cleddau is the Welsh-language title connected to the same core drama. That matters when you are searching streaming services, because one platform or review may use the English title while another highlights the Welsh one.
- Want the English version? Search for The One That Got Away.
- Want the Welsh-language version? Search for Cleddau.
- Still unsure? Add "Elen Rhys" or "Richard Harrington" to the search.
How it differs from same-name short dramas
Some search results point to short dramas, mobile-first series, or unrelated projects with almost the same title. The Welsh crime drama is different because it is a full six-episode television series with a murder mystery, two lead detectives, and a specific Welsh setting.
What is the first season about?
The first season begins with the murder of a nurse in Pembroke Dock. As Ffion and Rick investigate, details start to echo an earlier double murder, raising the uncomfortable question of whether the past was ever fully understood.
A nurse's murder in Pembroke Dock
The victim's death is not treated as an anonymous crime in a random location. Pembroke Dock matters because people know each other, histories overlap, and a murder quickly becomes personal for the wider community.
If you like crime dramas where the town feels involved in the mystery, this is one of the main appeals. The pressure comes as much from local memory and suspicion as from forensic clues or police interviews.
Clues linked to an earlier double murder
The older double murder gives the season its bigger hook. The new case may be connected by imitation, by unfinished evidence, or by a mistake people were too ready to accept years earlier.
That link changes how the viewer watches each clue. A new detail does not only point toward the current killer; it can also challenge what the town and the police believed about the earlier case.
Two detectives with an unresolved past
Ffion and Rick's history adds a second layer to the investigation. They are former lovers, so every disagreement carries professional pressure and personal discomfort at the same time.
- If you want a straight procedural, expect more emotional tension than a simple case-of-the-week format.
- If you prefer character-led crime drama, the unresolved relationship is part of the reason the mystery works.
Who plays the lead detectives?
The two lead detectives are played by Elen Rhys and Richard Harrington. The casting is important because the series depends on the audience believing both the investigation and the old relationship between Ffion and Rick.
Elen Rhys as DI Ffion Lloyd
Elen Rhys plays DI Ffion Lloyd, a detective whose return to Pembroke Dock is not emotionally neutral. She comes across as capable and controlled, but the case puts her back in contact with people and memories she cannot neatly keep outside the job.
Richard Harrington as DS Rick Sheldon
Richard Harrington plays DS Rick Sheldon. Rick feels more rooted in the town, which gives him a different relationship to the case than Ffion has. His steadier, more worn-down presence balances Ffion's guarded return and makes their partnership feel lived-in rather than newly invented for the plot.
Where can you watch The One That Got Away?
Viewing depends mainly on which language version you want and where you are watching from. UK viewers should start with BBC iPlayer for the English-language version and S4C Clic for Cleddau in Welsh, while viewers outside the UK may need to check local availability because streaming rights can change.
BBC iPlayer for the English-language version
For the English-language release, BBC iPlayer is the clearest place for UK viewers to check first. If the title search brings up confusing results, search with the actors' names as well: "The One That Got Away Elen Rhys" is more precise than the title alone.
S4C Clic for Cleddau in Welsh
For the Welsh-language version, search for Cleddau on S4C Clic. This is the more natural choice if you prefer Welsh-language drama or want to watch the story under its Welsh title.
- UK viewer, English version: start with BBC iPlayer.
- UK viewer, Welsh version: start with S4C Clic and search Cleddau.
- Outside the UK: check local services that carry British or Welsh drama, then verify the cast and plot before watching.
Conclusion
The safest way to find the right show is to match the title with the details that make it specific: Elen Rhys, Richard Harrington, Pembroke Dock, a nurse's murder, and the Welsh title Cleddau. If those pieces line up, you have found the atmospheric Welsh crime drama rather than one of the unrelated same-name productions.
