Emmerdale spoilers follow.
Emmerdale's Cain Dingle plans to confess everything to his wife Moira later this month.
The bad boy is keeping a big secret after betraying Moira by sleeping with his sister-in-law Ruby Fox-Miligan.
Cain gave into temptation with Ruby at the garage while anxiously awaiting updates on Moira's brain operation.
Once the dust had settled, Cain immediately regretted his actions and became determined to make sure that Ruby would never share their secret.
Related: Best streaming services
What to Read Next
In scenes airing early next month, an oblivious Moira plans a surprise birthday party for Cain. She dismisses concerns from her son Matty Barton, who doesn't think she's well enough for the celebratory gathering.
Meanwhile, as Cain struggles to cope with his guilt around Moira, he lies about his whereabouts so that he can spend some time away from her.
The timing couldn't be worse, as Moira is expecting Cain to be by her side when she attends her latest medical appointment.
Cain springs into action when he receives a desperate voicemail from Moira, who demands to know why he isn't there to support her.
Related: Emmerdale's Brenda Walker left devastated ahead of show exit
He tries his best to be by Moira's side at the eleventh hour, but mishaps and delays hinder his progress – including being blocked in by Jai Sharma's car.
As Cain becomes erratic while trying to reach the hospital in time, he's stopped by PC Swirling. He gets aggressive in response and is ultimately arrested for his bad behaviour.
Cain begs Swirling for a chance to at least have a private conversation with Moira on the phone before he's taken away.
When they finally get their chance to speak, Moira is shocked to learn that Cain has been arrested, but she assures him that her results are fine.
Related: Emmerdale's April Windsor to be kidnapped in Ross Barton storyline
Once alone with Matty, however, Moira clarifies that she'll need to undergo radiotherapy treatment, and she breaks down in tears in front of her son.
Later, Cain is released with a warning by Swirling but chooses to get drunk at the allotment rather than returning home to Moira. It's left to Cain's friend Liam Cavanagh to step in and bring him back to Butler's.
Moira is concerned by Cain's downward spiral and warns him to pull himself together, as his family have planned a "surprise" party for him the next day.
Knowing that he won't be in the mood to celebrate, Cain realises that it's time to confess all to Moira. Will he go through with it?
Emmerdale airs these scenes on Tuesday, December 10, and Wednesday, December 11, on ITV1 and ITVX.
Emmerdale airs on weeknights at 7.30pm on ITV1, and streams on ITVX.
