Debbie (played by Charley Webb) will turn up at her father's door unannounced next Tuesday.
Emmerdale bosses have been staying tight-lipped on the circumstances surrounding Debbie's return but they have revealed that she is in a lot of trouble.
In scenes that will air on January 19, Cain (Jeff Hordley) will offer Ross money to stay away from his daughter.
Ross ignores Cain's request and ends up having a heart-to-heart with his former flame.
Debbie Dingle will return to Emmerdale next week after one year away
Cain Dingle will warn Ross Barton to stay away from Debbie, offering him cash as an incentive
She works pretty well by herself
When Debbie asks about Ross' romance with newcomer Rebecca White (Emily Head,) his reply stuns her.
Ross tells her he still loves her, despite the fact she left him for over a year.
Fans of the show will remember Debbie fled the village after learning Ross had shot Robert Sugden (Ryan Hawley).
Debbie and Ross have a heart-to-heart and Ross tells Debbie he still loves her
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But can she forgive and forget?
Speaking to Express.co.uk at an Emmerdale press event, the 28-year-old said: "I'm quite happy for her not to be in a relationship. I think she works pretty well by herself."
Emmerdale continues tonight at 7pm on ITV.