If you’ve already watched the dramatic final episode of BBC’s atmospheric Scottish crime drama Shetland, you may be ready to have that twisty, turny season 10 Shetland ending explained.

This season, DI Ruth Clader and DI Tosh McIntosh found themselves taking on the case of Eadie Tulloch, an old woamn from the isolated village of Lunniswick whose body was found exposed to the elements outside of her home.

PHOTOGRAPHER:,Robert Periera Hind

Who would want to kill little old Eadie? Well, Ruth and Tosh uncovered plenty of intriguing secrets that gave them some clues. Her late husband Robert had been a corrupt cop who had secretly, illegally, hoarded hundreds of thousands of pounds. Meanwhile, her (rather dreamy) son Ed was found to be involved in drug trafficking. But how did Eadie get wrapped up in it all? The final episode finally gave us the answers.

Here’s is the season 10 Shetland ending explained.

PHOTOGRAPHER:,Screengrab

Ed Tulloch is arrested

The episode began with a bang. Ruth woke up to learn that Ed, yes, dreamy Ed, her new flirting buddy, had been arrested for trafficking. Although Lewis Mitchell thought his arrest would wrap up Eadie’s murder, Ruth and Tosh continued investigating.

Arthur sees Colin Waite’s video

Thanks to local Colin who made a video documenting the town, Arthur Mair discovered that Eadie had actually seen the Lintie sail away during the day. This contradicted the story that Eadie’s son Craig Tulloch and Arthur’s son Ally Mair had left the evening before the storm hit. Arthur realised that they must have set sail and returned before the storm – and that someone must have sent them back out.