The arrival of a military rescue team on Good Friday buoys the islanders. Jackie joins Major Tanner and his troops as they set out across the inhospitable landscape to track down Kai and rescue his captive, Twig.

The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 6 also features:

Ewan MacFarlane / Raven - Jamie Michie

Micky Brodsky / Raven - Tom Crowley

Maggie Webb / Raven - Hilary Maclean

Paul Rutherford / Raven - Blair Kincaid

Major Tanner - Regé-Jean Page

Raven - Scarlett Maltman

Inspector Carey - Rosalind Eleazar

Mr Pryor - Adam James

Kai - Stewart Scudamore

Twig - Sorcha Groundsell

Sound design is by Rich Evans and photography by Helen Murray. The executive producers are Robert Delamere and Sarah Doole and the series is produced by Ben Walker for Storyglass.

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