Shetland
BBC iPlayer
A quite enjoyable story but the clues were carefully doled out to provide constant redirection (not knowing the total number of episodes I was expecting the denoument at the end of at least three of them!). It starts with the discovery of two seemingly unrelated bodies and expands to take in conspiracy theorists, illegal genetic labs, mysterious pasts in the secret service and several awkward family relationships. And this is my concern here with my otherwise complete enjoyment of this season is that the misdirection / doling out of clues was solely for the purpose of dragging out the story to fill the available episodes. There was plenty of interesting stuff here but needlessly over-complicated and I think this might have been more enjoyable as two three-part stories. Have the courage to break the six episode mould folks!
A couple of points come to mind as a result of watching this season - so little actually happens on the islands that characters have to go elsewhere to end with a sufficiently interesting back story that returns to haunt them later; and those characters are always drawn back to the islands eventually!