Following recent heartache at the hands of cheating boyfriend Cameron Murray (Dominic Power), Dingle - played by Charley Webb - will use her family's history of con schemes to earn some quick money.
She soon hatches a get-rich-quick scheme in a similar vein to her parents Cain and Charity, in order to provide a better future for daughter Sarah and newborn son Jack.
"Debbie's on a mission and she's taking no prisoners!" an Emmerdale insider told Inside Soap.
> Emmerdale: Lucy Pargeter talks Chas Dingle stalker hell
"Heartbroken she might be, but she has no intention of sitting about moping. Debbie will be putting her Dingle skills to maximum use as she prepares to set her plan in motion," the source added.
"Her initial target is Dom, but once it becomes clear Debbie will stop at nothing in order to get her way, Cain and Charity start to wonder whether their daughter might be out of control."
Emmerdale next airs tonight (Friday, December 28) at 7pm on ITV1.
Photo gallery - A year on 'Emmerdale' in pictures:
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