The farm is in lockdown and police search teams swarm over theproperty, as the Bains are rocked by Azir's revelation.Believing the identity of the killer lies in the reason whyEllen left Shetland, Tosh and Calder arrest Bobby Bain. Anexplosive interrogation does nothing to dampen Calder'ssuspicions.Back at the farm, physical evidence of Ellen turnsthe spotlight on another member of her family, as the policecontinue to piece together her final movements.As the Bainsbegin to unravel, Grace remains defiant, but her silence onlyserves to confirm the existence of a secret at the heart ofthis family. Piecing together all that they have learnt sofar, Tosh and Calder move ever closer to an answer beyond whateither of them could have imagined.
