Apocalypse Slough: A Murder, They Hope Mystery — release date, cast, plot and everything we know

The key art for Apocalypse Slough, showing the cast standing in front of a rugby club that is exploding and bursting into flames. From left to right: Sanjeev Bhaskar, Gemma Jones, Jim Howick, Ben Bailey Smith, Simon Day, Johnny Vegas, Sian Gibson, Shaun Williamson, Sarah Hadland, Annette Badland, Matthew Kelly and Charlie Hardwick
(Image credit: UKTV)

Apocalypse Slough: A Murder, They Hope Mystery is the latest in the series of comic murder mysteries written by Jason Cook and starring Johnny Vegas and Sian Gibson as Terry and Gemma Bremmer, former coach tour operators turned private investigators.

Following the success of the 2023 Christmas special Blood Actually, the new feature-length story sees Gemma and Terry — along with Gemma's wannabe influencer sister Monica, played by Sarah Hadland — investigating some extremely suspicious goings-on at a rugby club.

"It's so good to be back with Gemma and Terry, and this time Monica's tagging along to increase the chaos!" says Jason. "What an amazing cast we managed to get for this one, with some really fantastic performances. I can't wait for everyone to see."

Here's everything you need to know about the dynamic duo's latest adventure...

Apocalypse Slough release date

Apocalypse Slough: A Murder, They Hope Mystery will air on Thursday, September 26 at 9pm on GOLD.

Apocalypse Slough plot

Gemma (Sian Gibson) stands in front of a Berrington Wasps logo at a table set up for a press conference. She has her arms outstretched and is smiling. Terry (Johnny Vegas) is sitting in one of the chairs to her right, and Gwyn (Sanjeev Bhaskar) is standing to her left looking alarmed

Gemma (Sian Gibson) takes charge at Berrington Rugby Club (Image credit: UKTV)

Apocalypse Slough: A Murder, They Hope Mystery sees Gemma recruited by the Serious Crimes Agency (SCA). It's a dream come true for the ambitious sleuth, who can finally live as the kick-ass investigator she always dreamed of being... but unfortunately the SCA don't want Terry because of his criminal past.

As Gemma's new status puts a strain on the couple's relationship, they are hired to solve a double murder at a local rugby club, where all of the members seem to be behaving very strangely — and then more bodies start appearing.

To make matters even weirder, the dead bodies all bear the same strange symbol somewhere on them — could this be a gentleman murderer leaving a calling card? And why does a camouflaged figure keep calling Gemma from a mysterious bunker?

Apocalypse Slough cast

Along with returning regulars Sian Gibson, Johnny Vegas and Sarah Hadland, the cast of Apocalypse Slough: A Murder, They Hope Mystery also includes Annette Badland (Midsomer Murders), Sanjeev Bhaskar (Unforgotten), Simon Day (King Gary), Charlie Hardwick (Ackley Bridge), Jim Howick (Ghosts), Gemma Jones (Gentleman Jack), Matthew Kelly (Benidorm), Ben Bailey Smith (The Sixth Commandment) and Shaun Williamson (Extras).

Apocalypse Slough character guide

Monica (Sarah Hadland) stands in front of the bar at the rugby club, holding up her phone to film herself, with Terry (Johnny Vegas) standing behind her and joining in

Monica (Sarah Hadland) gets Terry (Johnny Vegas) on livestream for all her fans (Image credit: UKTV)

Johnny Vegas as Terry: Former coach driver Terry is still somewhat reluctant to embrace the lifestyle of a private investigator, but his love for Gemma keeps him going — and he does have a talent for the job, with a tendency to pick up on important details that other people miss.

"Quite honestly, I would say Terry is afraid of Gemma!" says Johnny. "He may voice his concerns sometimes, but there's a lot of eye-rolling from Terry, and he's just asking for a quiet life. As Gemma's confidence is building in leaps and bounds, Terry is a little bit more reserved. His brain is always working on the crimes, but he is happy to let her take the lead."

Sian Gibson as Gemma: Ambitious and driven (not just by Terry in the coach), Gemma craves excitement and her new job with the Serious Crimes Agency — plus the gun that comes with it — is everything she's ever wanted. But there's a possibility that this newfound authority might go to her head...

"Gemma is loving her new responsibilities, and rubbing it in Terry's face!" says Sian. "She has always been the more ambitious of the two, and Terry has reluctantly followed her into a career of private investigating to make her happy. He is supportive of her new promotion at the start, but as Gemma becomes more and more ruthless, Terry becomes more despondent, and their relationship begins to suffer."

Sarah Hadland as Monica: Gemma's brash, loud sister is a wannabe influencer who, after being asked to help with the latest case by Gemma, insists on livestreaming the ongoing investigation for her followers. Will she be able to keep herself away from her phone long enough to solve the crimes?

"Filming the vlogging scenes was hilarious," says Sarah. "I had to sort of hold the frame of the camera, without pushing our lovely camera man Dan over! Between us, we practised him moving backwards and me scuttling at speed without causing an accident. I loved it, though — anyone who knows me will tell you I speak very quickly in real life, so rattling off these epic monologues Jason Cook writes was a joy."

Gregor (Matthew Kelly), Ursula (Charlie Hardwick) and Gwyn (Sanjeev Bhaskar) stand in the function room of the rugby club

Could Gregor (Matthew Kelly), Ursula (Charlie Hardwick) or Gwyn (Sanjeev Bhaskar) be hiding a sinister secret? (Image credit: UKTV)

Sanjeev Bhaskar as Gwyn: The chairman of the rugby club who just wants this unfortunate incident cleared up as soon as possible — and if he can advertise his skip hire business in the process, that's even better.

Jim Howick as Bernard: The club's groundsman has a slightly off-putting manner, but is passionate about conservation — perhaps a little too passionate. Still, he does a nice line in vegan BBQ...

Matthew Kelly as Gregor: A well-travelled man with plenty of anecdotes if you want to hear them (and even if you don't), particularly involving the time he was held captive in Rio.

Charlie Hardwick as Ursula: Gregor's snooty wife is a descendant of the rugby club's founders — and she won't let you forget about it. She doesn't care who she offends, which might come back to haunt her.

Margaret (Annette Badland) and Brenda (Gemma Jones) stand in the function room at the rugby club. Margaret has her hand on Brenda's shoulder, and Brenda has her left hand over her mouth in alarm

Margaret (Annette Badland) and Brenda (Gemma Jones) are worried about the deaths at the rugby club (Image credit: UKTV)

Simon Day as Mr Bradley and Shaun Williamson as Mr Martin: Two property developers who have planned to tear down Berrington Rugby Club and turn it into housing. They're also prone to turning against each other when the chips are down.

Annette Badland as Margaret: The rugby club's cleaner who also cleans the homes of most of the members, so there aren't many secrets that she's not privy to. She also has a habit of taking things that don't belong to her.

Gemma Jones as Brenda: Margaret's friend and fellow cleaner, Brenda is more of the shy and retiring type — you might not even notice she's there, and that's how she prefers it. Then again, it's always the quiet ones...

Ben Bailey Smith as Dinger: He's the rugby club's resident referee, and about as popular as you'd expect. He's also fastidious about personal hygiene, to the point of making his own handwash at home rather than buying it from shops.

Is there a trailer for Apocalypse Slough?

GOLD hasn't released a trailer for the show yet, but we'll update this article if they do!

Steven Perkins
Staff Writer for TV & Satellite Week, TV Times, What's On TV and whattowatch.com

Steven Perkins is a Staff Writer for TV & Satellite Week, TV Times, What's On TV and whattowatch.com, who has been writing about TV professionally since 2008. He was previously the TV Editor for Inside Soap before taking up his current role in 2020. He loves everything from gritty dramas to docusoaps about airports and thinks about the Eurovision Song Contest all year round.