Magazine reports have revealed that Carl (Tom Lister) will become suspicious in the coming days when he notices an unusual atmosphere between the on-off lovers.
With shrewd Carl keeping a close eye on Chas and Cameron, it's not long before the pair slip up by sharing a secret kiss - unaware that the haulage firm boss is watching them from afar.
Viewers will then see Carl turn the situation to his advantage by demanding £30,000 from Chas (Lucy Pargeter) in return for his silence.
After Chas scammed Carl out of thousands with her wedding scheme nearly two years ago, it seems that the businessman has finally secured his chance of revenge.
Will Chas agree to Carl's demands? Or will her secret be exposed to everyone?
Emmerdale airs these scenes in the week commencing Monday, September 10 on ITV1.