Emmerdale teen Sarah Sugden is set to make a big discovery it seems, as she works out Mackenzie Boyd could be the father of Chloe Harris' baby.
Only a handful of characters know about their one-night stand, and the fact Chloe is now pregnant with his child - while Mack's partner Charity has no idea he cheated on her.
While the village knows about Chloe's pregnancy, she has lied about the identity of the father as Mack has continued to struggle with whether he wants to be involved in his child's life or not.
But it could all come crashing down next week, when Charity's granddaughter Sarah asks Chloe outright if Mack is the father.
She spots a moment between the pair and works out he could be the father - only for Chloe to cruelly lie and guilt-trip her into backing down.
It all kicks off next week when Mack is keen to get Chloe out of the house, after she moves in with him, Charity and Sarah.
After Chloe's collapse and hospital dash, Sarah offers her friend somewhere to stay with the approval of Charity - but Mack is panicked.
Next week he continues to try and get Chloe to leave, and in desperation he reveals to Chloe that he’s paid the deposit on a flat for her.
Feeling pushed out, Chloe is upset and angry and this only increases when Mack later insists that she moves out the next day.
What neither of them realise is that Sarah has witnessed the entire exchange, and she's left suspicious - and she soon comes up with a conclusion of her own.
The next day, Chloe’s caught off guard when Sarah asks her if Mack is the father of her unborn child.
Chloe pretends to be shocked and mortified by the claim, and manipulates Sarah into backing down in a cruel lie.
She claims to her friend that she'd never do anything to hurt her friend's family and Sarah is left feeling guilty about her accusation.
Chloe soon tells Mackenzie what has happened and urges him to calm down, worried that his guilty behaviour is making people suspicious, including Sarah.
She reassures him that she threw Sarah off the scent, but does Sarah believe her or will she continue to guess something has gone on between them?
Emmerdale airs weeknights at 7:30pm on ITV1 and ITVX, with an hour-long episode on Thursdays.
