Shetland is preparing for a particularly consequential return. A new trailer for the Scottish crime drama was reported on 6 November, giving viewers a closer look at the eleventh series before its BBC One premiere on Thursday 12 November 2026 at 9pm. The six-part run brings Ashley Jensen back as DI Ruth Calder alongside Alison O’Donnell as DI Alison ‘Tosh’ McIntosh. It also marks O’Donnell’s final series in a role she has played since the programme began in 2013.
What is the new investigation about?
The opening case starts with a car recovered from the water. Inside its boot, detectives discover skeletal remains, setting off a search for the identity of the dead man and the history of the vehicle. Investigators trace the car to Dr Raymond Linden, a respected local GP who left Shetland nine years earlier. That departure becomes central to Calder and Tosh’s enquiries as they look at the people and secrets left behind. The BBC’s published description frames the story as a historic murder whose consequences reach into the present. It does not establish who is responsible, and viewers should treat theories about the killer as speculation rather than confirmed plot information.
Why Tosh’s departure matters
For long-time viewers, the new mystery is only part of the attraction. O’Donnell’s Tosh has been a constant presence through major changes in the detective team, including the transition from Douglas Henshall’s Jimmy Perez to Jensen’s Ruth Calder. Her announced exit therefore gives the new series an additional emotional dimension. The production has indicated that Tosh will receive a memorable farewell, but the precise circumstances of her departure have not been disclosed. There is no basis for assuming that an actor’s exit means a character will be killed off. That distinction matters particularly in a crime drama built around danger, secrets and reversals.
Who is returning and joining the cast?
Jensen and O’Donnell lead the story, with Steven Robertson returning as DC Sandy Wilson and Lewis Howden as Sergeant Billy McCabe. The guest cast announced for this run includes Gregor Fisher, Christine Bottomley and Gavin Mitchell. The presence of new faces gives the investigation room to expand beyond the regular police team, although their precise connections to the central mystery should not be invented ahead of transmission. The series continues to use its island setting as more than scenery: a close community and a long-buried case mean the detectives must contend with histories that may be difficult for witnesses to revisit.
When and where can viewers watch?
The first episode is scheduled for Thursday 12 November at 9pm on BBC One, with BBC iPlayer also carrying the programme. The announced series consists of six episodes. UK television listings also show a second episode on Thursday 19 November at 9pm, although viewers should check the BBC schedule for any later changes. Anyone catching up before the premiere can use BBC iPlayer to revisit earlier instalments and the shift in the lead detective role. The programme remains rooted in Ann Cleeves’s Shetland novels, while its television storylines have developed their own identity over successive series.
What the trailer does — and does not — confirm
The 6 November trailer report is a genuine new promotional development rather than a fresh announcement of the premiere date, which had already been confirmed in late October. It offers another reason to revisit the upcoming investigation, but does not resolve the central mystery or reveal exactly how Tosh leaves. Viewers can expect a case linked to a missing doctor and a discovery in a submerged car, not a verified account of the ending. With the premiere only days away, the strongest confirmed questions are how Calder and Tosh connect the remains to the past, and what form Tosh’s already-announced farewell will take. Those answers belong to the episodes themselves.
Sources and editorial note
This preview draws on Shetland News’s report of the new BBC trailer on 6 November, Digital Spy’s BBC return-date coverage, and Radio Times’ confirmation of the premiere and cast transition. It distinguishes published programme information from unconfirmed story theories.