6/6. Calder and Tosh turn their focus onto Lisa, until her confession unearths a shocking event and leads the team back to Annie's inner circle. Also in HD. [S,AD]
2/6. The hunt is on for Ian Bett as a picture of Anton Bergen begins to emerge. Are Calder and Tosh dealing with the revenge of a jealous ex-husband? Also in HD. [S,AD]
6/6. Calder and Tosh reunite as the police descend upon the Bain farm and begin their search. Contains some strong language and some upsetting scenes. Also in HD. [S]
5/6. Calder initially reels from the awful news, but quickly becomes suspicious. Tosh worries Harry and Donnie with her pursuit of a controversial new theory. Also in HD. [S,AD]
4/6. Tosh believes she has the murderer in custody and tasks the team with finding the evidence to charge them. Calder suffers in silence with Jean's revelation. Also in HD. [S,AD]
3/6. Unnerved by her discovery, Calder decides to stay on in Shetland. Tosh welcomes the support, as the revelation of a tattoo sends the case in a sinister new direction. Also in HD. [S,AD]
2/6. Calder and Tosh must work together to find the armed killers and prevent further disaster. Howell and Nowak take refuge with a local and wait for a means of escape. Also in HD. [S,AD]
1/6. A Met detective returns to Shetland on the trail of a vulnerable witness. DI Ruth Calder must team up with Tosh to find the girl before it's too late. Also in HD. [S,AD]
6/6. The team races to identify the killer and prevent disaster striking Lerwick. As the investigation draws to a close, Perez faces a life-changing decision. Also in HD. [S,AD]
5/6. Perez tries to get the measure of Lloyd. Evidence emerges of another bombmaker. The net closes in around Martin. Sandy uncovers Connor's interest in a piece of local history. Also in HD. [S,AD]
4/6. Perez issues a warrant for Connor's arrest and looks for the motive behind his bomb-making. Sandy tries to find out what business William Rodgers had in Shetland. Also in HD. [S,AD]
3/6. Mounting evidence pushes Perez and the team to revise their view of Connor Cairns. Is he a vulnerable missing person or a killer on the run? Contains some strong language. Also in HD. [S,AD]
1/6. DI Perez investigates the disappearance of a vulnerable young man, whose family are new to Shetland. Has whatever they are running from come back to haunt them? Also in HD. [S]
2/6. In the aftermath of the diving incident, the team searches for a link between the two bodies. Meanwhile, Perez must deal with the return of Donna Killick. Also in HD. [S,AD]
1/6. When a prominent and controversial Shetlander is shot dead on their doorstep in broad daylight, Perez rushes back from his mother's funeral to lead the investigation. Also in HD. [S,AD]
6/6. With Olivia giving up hope, Perez at last closes in on Zezis location. But can he reach her before its too late? Duncan is traumatised after his discovery on the beach. [S,AD]
4/6. Sure that Zezi is being held on Shetland, Perez and the team ramp up the pressure on their remaining leads. Personally, Perez finds himself in turmoil after his kiss with Alice.
Sandy feels the heat in the aftermath of Calum's suicide. Convinced that McGuire is the key to cracking the case, Perez travels to Glasgow in an attempt to track him down.
4/6. Crime drama. Ignoring Secret Service warnings, Perez and Tosh track down Mathias Soderland. Back on Shetland, a beach memorial service is held for Sally McColl. Also in HD. [AD,S]
3/6. Crime drama. Perez questions Donna on the DNA result. Tosh arrives in Norway to track down Hagan. A twist leads Perez and Tosh into the murky world of the far-right. Also in HD. [AD,S]