101 episodes

Undertow is Realm’s premier showcase of original audio horror. Hosted by audio horror pioneer and creator Fred Greenhalgh, each season presents a spooky standalone story, so you can dive in anytime... if you dare!

Current Season: The Harrowing

Golden Globe winner Joanne Froggatt stars as Police Sergeant Jackie O'Hara in The Harrowing, an 8-part supernatural thriller. As the isolated community takes shelter, a barbaric crime sets off a chain of events which heralds the rise of an ancient evil and threatens to change the course of history.

Craving More Frights? Explore Past Seasons:

Season 1: Simpson Falls - A reporter awakens malevolent forces in his haunted hometown.
Season 2: Blood Forest - Every 20 years, werewolves descend for a night of horror. Starring Jack Falahee.
Season 3: Dark Tome - A teen unleashes a terrifying story from a spooky bookshop.
Season 4: The Well - Family secrets resurface, setting loose horror from an old well.
Season 5: The Pulse - A meteorite awakens animalistic instincts in a group of treasure hunters.
Season 6: The Sisters - True events inspire a chilling tale of occult & possession. Starring Mae Whitman.
Season 7: Last Call - A hustler gambles for his life against the Grim Reaper.
Season 8: Narcosis - A rescue dive turns deadly beneath the waves.

Binge Ad-Free & Early! Subscribe at realm.fm.

Undertow: The Harrowing Realm

    • Fiction

Listen on Apple Podcasts
Requires subscription and macOS 11.4 or higher

Undertow is Realm’s premier showcase of original audio horror. Hosted by audio horror pioneer and creator Fred Greenhalgh, each season presents a spooky standalone story, so you can dive in anytime... if you dare!

Current Season: The Harrowing

Golden Globe winner Joanne Froggatt stars as Police Sergeant Jackie O'Hara in The Harrowing, an 8-part supernatural thriller. As the isolated community takes shelter, a barbaric crime sets off a chain of events which heralds the rise of an ancient evil and threatens to change the course of history.

Craving More Frights? Explore Past Seasons:

Season 1: Simpson Falls - A reporter awakens malevolent forces in his haunted hometown.
Season 2: Blood Forest - Every 20 years, werewolves descend for a night of horror. Starring Jack Falahee.
Season 3: Dark Tome - A teen unleashes a terrifying story from a spooky bookshop.
Season 4: The Well - Family secrets resurface, setting loose horror from an old well.
Season 5: The Pulse - A meteorite awakens animalistic instincts in a group of treasure hunters.
Season 6: The Sisters - True events inspire a chilling tale of occult & possession. Starring Mae Whitman.
Season 7: Last Call - A hustler gambles for his life against the Grim Reaper.
Season 8: Narcosis - A rescue dive turns deadly beneath the waves.

Binge Ad-Free & Early! Subscribe at realm.fm.

Listen on Apple Podcasts
Requires subscription and macOS 11.4 or higher

    The Harrowing, E1

    The Harrowing, E1

    Sergeant Jackie O'Hara arrives on the remote Isle of Toll Mòr to follow up an emergency call from local farmer Frank Guthrie. As the weather worsens and she makes her way inland, nothing can prepare her for what she's about to witness.

    The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 1 also features:

    The Stranger - Stewart Scudamore
    Father McKenna - Alec Newman
    Inspector Carey - Rosalind Eleazar
    Mr Pryor - Adam James
    Police Constable - Scarlett Maltman
    Maggie Webb - Hilary Maclean
    Paul Rutherford - Blair Kincaid
    Micky Brodsky - Tom Crowley
    Ewan MacFarlane - Jamie Michie
    Alan Forbes - Stuart Martin
    Other roles were played by the cast

    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.

    For more shows like this, visit Realm.fm, and sign up for our newsletter while you're there!

    Listen to this episode ad-free by joining Realm Unlimited or Realm+ on Apple Podcasts. Subscribers also get early access and exclusive bonus content! Visit realm.fm/unlimited

    Follow us on Instagram, Twitter, and TikTok. Want to chat about your favorite Realm shows? Join our Discord.

    Visit our merch store: realm.fm/merch

    Find and support our sponsors at: www.realm.fm/w/partners
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    • 33 min
    The Harrowing, E2

    The Harrowing, E2

    The storm closes in and Jackie desperately searches for the missing girl. As Holy Wednesday turns to Maundy Thursday, a stranger is discovered near the Ward farmhouse.

    The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 2 also features:

    Mr Pryor - Adam James
    Inspector Carey - Rosalind Eleazar
    Frank Guthrie - Lewis Howden
    Davey - Alex Graydon
    Twig - Sorcha Groundsell
    Alan Forbes - Stuart Martin
    Karen Forbes - Hilary Maclean
    The Stranger - Stewart Scudamore

    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.

    For more shows like this, visit Realm.fm, and sign up for our newsletter while you're there!

    Listen to this episode ad-free by joining Realm Unlimited or Realm+ on Apple Podcasts. Subscribers also get early access and exclusive bonus content! Visit realm.fm/unlimited

    Follow us on Instagram, Twitter, and TikTok. Want to chat about your favorite Realm shows? Join our Discord.

    Visit our merch store: realm.fm/merch

    Find and support our sponsors at: www.realm.fm/w/partners
    Learn more about your ad choices. Visit megaphone.fm/adchoices

    • 25 min
    The Harrowing, E3

    The Harrowing, E3

    Jackie and Forbes attempt to interrogate the stranger, but are frustrated by his answers. Father McKenna seeks out Jackie to deliver a warning.

    The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 3 also features:

    Father McKenna - Alec Newman
    Kathleen - Hilary Maclean
    Inspector Carey - Rosalind Eleazar
    Mr Pryor - Adam James
    Kai - Stewart Scudamore
    Alan Forbes - Stuart Martin

    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.

    For more shows like this, visit Realm.fm, and sign up for our newsletter while you're there!

    Listen to this episode ad-free by joining Realm Unlimited or Realm+ on Apple Podcasts. Subscribers also get early access and exclusive bonus content! Visit realm.fm/unlimited

    Follow us on Instagram, Twitter, and TikTok. Want to chat about your favorite Realm shows? Join our Discord.

    Visit our merch store: realm.fm/merch

    Find and support our sponsors at: www.realm.fm/w/partners
    Learn more about your ad choices. Visit megaphone.fm/adchoices

    • 37 min
    The Harrowing, E4

    The Harrowing, E4

    With the stranger and the girl missing, Jackie has to tell the islanders what has happened and enlist their help conducting a search.

    The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 4 also features:

    Reporter 1 - Tom Crowley
    Reporter 2 - Blair Kincaid
    Father McKenna - Alec Newman
    Reporter 3 - Hilary Maclean
    Ian Sullivan - Lewis Howden
    Inspector Carey - Rosalind Eleazar
    Alan Forbes - Stuart Martin
    Mr Pryor - Adam James
    Kai - Stewart Scudamore
    Twig - Sorcha Groundsell
    Ewan MacFarlane - Jamie Michie
    Other roles were played by the cast

    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.

    For more shows like this, visit Realm.fm, and sign up for our newsletter while you're there!

    Listen to this episode ad-free by joining Realm Unlimited or Realm+ on Apple Podcasts. Subscribers also get early access and exclusive bonus content! Visit realm.fm/unlimited

    Follow us on Instagram, Twitter, and TikTok. Want to chat about your favorite Realm shows? Join our Discord.

    Visit our merch store: realm.fm/merch

    Find and support our sponsors at: www.realm.fm/w/partners
    Learn more about your ad choices. Visit megaphone.fm/adchoices

    • 32 min
    The Harrowing, E5

    The Harrowing, E5

    With the search effort frustrated, Jackie reads the old book Father McKenna gave her telling of an ancient and horrifying prophecy. On the other side of the island, Twig questions Kai, while he makes preparations for battle. Content warning: this episode contains a depiction of suicide that some people may find disturbing.

    The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 5 also features:

    Alan Forbes - Stuart Martin
    Mr Pryor - Adam James
    Inspector Carey - Rosalind Eleazar
    Ewan MacFarlane - Jamie Michie
    Paul Rutherford - Blair Kincaid
    Micky Brodsky - Tom Crowley
    Maggie Webb - Hilary Maclean
    Twig - Sorcha Groundsell
    Kai - Stewart Scudamore
    Davey - Alex Graydon
    Father McKenna - Alec Newman
    Child reading in church - Maya Graydon
    Major Tanner - Regé-Jean Page
    Other roles were played by the cast

    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.

    For more shows like this, visit Realm.fm, and sign up for our newsletter while you're there!

    Listen to this episode ad-free by joining Realm Unlimited or Realm+ on Apple Podcasts. Subscribers also get early access and exclusive bonus content! Visit realm.fm/unlimited

    Follow us on Instagram, Twitter, and TikTok. Want to chat about your favorite Realm shows? Join our Discord.

    Visit our merch store: realm.fm/merch

    Find and support our sponsors at: www.realm.fm/w/partners
    Learn more about your ad choices. Visit megaphone.fm/adchoices

    • 38 min
    The Harrowing, E6

    The Harrowing, E6

    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.

    For more shows like this, visit Realm.fm, and sign up for our newsletter while you're there!

    Listen to this episode ad-free by joining Realm Unlimited or Realm+ on Apple Podcasts. Subscribers also get early access and exclusive bonus content! Visit realm.fm/unlimited

    Follow us on Instagram, Twitter, and TikTok. Want to chat about your favorite Realm shows? Join our Discord.

    Visit our merch store: realm.fm/merch

    Find and support our sponsors at: www.realm.fm/w/partners
    Learn more about your ad choices. Visit megaphone.fm/adchoices

    • 27 min

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