The troubled couple's wedding day finally arrives next Monday (January 21), although Tyrone (Alan Halsall) is only going ahead with the ceremony to secure parental rights over his baby daughter Ruby before he dumps Kirsty for good.
Tyrone has managed to keep his deception under wraps so far, but show chiefs have now confirmed that Kirsty (Natalie Gumede) will discover his affair with Fiz Stape on the night before the wedding.
A show statement teased: "Devastated and furious, Kirsty has to make a decision on whether to go ahead with the wedding knowing what Tyrone is up to. Kirsty won't take this lying down, so expect many more surprises as this dramatic story unfolds.
"The action-packed episodes to be screened on ITV on Monday, January 21 are full of unexpected twists and turns - and even after Tyrone and Kirsty return from the church, the drama continues with tragic consequences."
Whether the ceremony actually goes ahead is being kept tightly under wraps, but it has been revealed that Tyrone and Kirsty will have a blazing row about the day's events once they arrive back home.
When Kirsty goes to hit Tyrone, she loses her balance and ends up crashing down the stairs.
After being rushed to hospital, Kirsty comes up with a plan to use the accident to her advantage - falsely accusing Tyrone of months of systematic domestic abuse.
Picture gallery - Tyrone and Kirsty's dramatic wedding week:
The statement added: "The wedding episodes mark a turning point in a storyline which has kept viewers gripped for the past year.
"With everything out in the open, it looks as though the drama is just beginning for Tyrone as he faces a court case for something he has not done."
Coronation Street airs the wedding episodes on Monday, January 21 at 7.30pm and 8.30pm on ITV.
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