Emmerdale spoilers for next week: John's dangerous move as a villager faces death

There's danger, concern and sad discoveries on next week according to

Our soap insider has teased the big moments ahead, with plenty of hints at what fans can expect from next week's episodes. There's a worrying mistake made by one character with a misdiagnosis, and later on another character is left in serious danger.

It's not looking good, with out source sharing it's a "scary" moment for all of those involved in the scene. There's also a secret exposed that could tear two sisters apart, and leave one resident facing big trouble.

Our soap source teased: "It's a big week in the Dales to say the least. One character is forced to take desperate action to save a life at a time where fans are utterly convinced he's the village grim reaper.

"Something one villager does raises suspicions, and it's safe to say he's left very rattled. There's also some quite upsetting scenes for more than one character, and it's up in the air as to whether one of them can be forgiven."

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Next week on the soap, spoilers have revealed medic John Sugden causes alarm at the surgery when he's distracted. He ends up misdiagnosing a patient, Kerry Wyatt, while it's not revealed what's wrong with her.

But the moment doesn't get missed by John's boss Liam Cavanagh, and it's clear it's not John's first error at work. Soon enough John is forced to undergo a review into his care, but what might come out about the character?

"Liam's forced to take abrupt action," our soap source shared. "John's left completely rattled, but it's clear something is throwing him off and causing him to make huge errors. Liam has enough and decides to get to the bottom of it."

The scenes will leave John confiding in his sister Victoria Sugden, but a moment arises later in the week where John is forced to play the hero once more. Jacob Gallagher, who suffers with a nut allergy, takes a sip of the wrong coffee and goes into anaphylactic shock.

When he's unable to find his AAI pen he panics, and soon he falls unconscious. "It's a terrifying moment for Jacob and those around him. John sees the incident unfold and he's forced to jump in and attempt to save Jacob. It could be the moment that allows John to prove himself, but it'll no doubt also spark suspicion among fans who already think he's behind some recent incidents."

Elsewhere, next week sees the moment that Vanessa Woodfield exposes her sister Tracy Robinson's secret theft. She's been stealing from the till in Eric Pollard's shop for weeks, while keeping her financial woes a secret from her loved ones.

As she continues to take money she's left feeling guilty when Eric realises money is missing, and blames himself. When she ends up confessing to Vanessa, her sister apologises for being ignorant to her money issues.

She also gives her money to replace the cash stolen from Eric, which she does while gaslighting him into thinking he was the one who had misplaced it. She's exposed though when a drunk and angry Vanessa rips into Tracy and tells Eric about her secret.

"Tracy doesn't see it coming at all," reveals our soap source. "She thinks she's managed to keep a lid on things despite her guilt, with her sister saving the day. But when a grieving Vanessa sees red, she outs Tracy to the whole pub including poor Eric.

"The betrayal leaves him reeling and Tracy can do nothing to deny what she's done. It's make or break time for the character as she could face serious trouble depending on what Eric does next."

Emmerdale airs weeknights at 7:30pm on ITV1 and ITVX, with an hour-long episode on Thursdays. * Follow Mirror Celebs and TV on , , , , , and .