Emmerdale's Mack framed as sad death teased - but John's downfall 'sealed'

There were horrifying scenes on on Friday night, as a slurry leak on the farm left lives in danger.

John Sugden had opened the slurry tank and allowed the contents to leak out on Thursday night, with the devastation only realised in the next episode. Moira Dingle made the discovery on her farm and quickly confronted her brother Mackenzie Boyd.

With it having been his job to ensure the slurry tank was closed, which he did, Moira accused him of neglecting his job and not taking care of the equipment like he was meant to. Mack was blamed, with it looking as though he had forgotten to keep the tank closed, allowing the contents to spill out overnight.

As the group panicked, John took Aaron Dingle to the farm pretending he wanted a chat with Mack, when he clearly wanted to witness his handy work and the downfall of Mack. He raced to help in the situation as Moira revealed the leak was huge, and they needed to neutralise it.

As Mack panicked over his apparent actions while protesting his innocence, John smugly told him "mistakes happen". But it's something he said to him that may eventually give away his guilt.

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He very unsubtly told him: "I'm gonna help you fix this!" It's not really a normal thing to say, while fans know he has this complex it seems where he needs to save people and fix situations, but might Mack cotton on to this?

Later there was further horror when Moira's husband Cain Dingle looked around the village, and found out the slurry leak had reached the stream. Moira warned that some of the stream runs into the village's water supply, and the water the residents drink.

She feared this meant that the water was now contaminated, and revealed they would need to warn people and contact the water board. As Mack asked whether this was avoidable, she said there was every chance it was too late to stop a contamination and that the board would need to inspect the damage.

John tried to halt this and it was clear he was panicking, with it actually being down to him. As it dawned on him what he had actually done, he could only watch on as it was decided Moira would contact the board.

Mack began blaming himself with him seeming to be at fault, fearing the consequences of his actions both against Moira, but also if anyone was harmed. With that John found out an ambulance had pulled up outside his sister Victoria's house.

Her young son Harry had felt unwell and after continuing to drink the water, unaware of the issue, he became really poorly. Harry was rushed to hospital in a bad way, with Victoria fearing for her son's life.

So will John's vengeance against Mack lead to his own nephew being killed? It was clear he felt guilty for his actions after seeing Harry rushed away, looking very panicked.

Perhaps his guilt will lead to his own downfall, as he couldn't hide the look on his face. Pleading that Harry "has to be okay", might his guilt get the better of him and might he be rumbled?

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