The drama begins when Chris starts behaving strangely over the next few days, appearing forgetful and distracted - which makes Maria question whether he's losing interest in their relationship.
Events soon come to a head when Chris causes an accident at work which injures Jason, prompting an angry Owen to put him on his last warning. However, volatile Chris tells his boss that he can stick his job.
Keen to resolve the matter, Maria pays a visit to Owen and begs him to take Chris back. However, when her words of persuasion prove successful and she shares the news with her boyfriend, he goes into meltdown and rants about her going behind his back.
After furiously causing destruction in Maria's home, Chris storms out but his ex Cheryl soon discovers what's been going on and confronts him.
Opening up to his former partner, Chris finally confesses the tragic truth behind his recent erratic behaviour - he has a brain tumour and may not have long left. How will Cheryl react and will Chris be able to confide in Maria?
These scenes air on Monday, August 8 at 7.30pm on ITV1.
Over on EastEnders, Tanya's romantic dilemma will soon come to a head - before her world is turned upside down by some heartbreaking news.
After weeks of juggling her marriage to Greg and secret affair with Max, Tanya finally decides that it's Max who she wants to be with and the pair prepare to tell their families the truth.
However, before Tanya gets a chance to end her relationship with Greg, she receives some earth-shattering information from local doctor Yusef - she's had some abnormal smear test results and may well have cancer.
As the shocking news sinks in, Tanya arranges to meet Max - but what will she tell him and will she still go ahead with their original plan?
A Walford insider commented: "Tanya finally feels like she knows what she wants, but when Dr Yusef speaks to her, her whole world is thrown into turmoil and it makes her question everything again. What will she do?"
These scenes air on Friday, August 12 at 8pm on BBC One.
Coming up on Emmerdale, Aaron tries to make a fresh start by moving into The Woolpack following his not guilty verdict - but he's still wrestling with his demons and remains on a self-destructive path.
From the outset, Diane is unhappy that Chas has allowed Aaron to move in, as a share in the pub's accommodation wasn't part of the original deal when the feisty brunette bought into the business.
To make matters worse, it's not long until Aaron is at the centre of drama at the bar when he fronts up to Carl threateningly, continuing their long-running war.
Chas stays loyal by sticking up for Aaron during the row, but Diane is in no mood for the mechanic's behaviour and orders him to get out.
Still angry later, Diane gets tough with Chas and tells her that the arrangement isn't going to work out and Aaron has to go.
As Chas worries over her son's future, Aaron's erratic behaviour is only just beginning…
These scenes air on Monday, August 8 at 7pm on ITV1.
Meanwhile, Hollyoaks' serial killer plot returns to the forefront of the soap next month as the police investigation into the grisly murders which have rocked the village becomes more high-profile.
As Texas makes an emotional public appeal over her sister's tragic death, Silas's brazen behaviour continues as he calmly watches on - keen to keep a close eye on proceedings.
When the police announce that there'll be a reconstruction of India's final moments, Texas agrees to take on the role of her sister for the event. However, Lynsey is still convinced that all is not right when it comes to Silas and believes that Texas is putting herself in danger by playing such a public role in the investigation.
With Lynsey's suspicions intensifying by the day, she becomes freaked out when Silas suddenly grabs her on the street to stop a passing cyclist from colliding with her.
Determined that she can't carry on doing nothing while a killer is on the loose, Lynsey decides to take matters into her own hands - trying to help things along by pinning evidence on Silas. Will Lynsey's scheming prove to be the murderer's undoing or will the sinister grandfather stay one step ahead of her?
These scenes air between Monday, August 8 and Thursday, August 11 at 6.30pm on Channel 4.
In our latest storyline poll, Hollyoaks secured its fourth consecutive week at the top as 48.3% of you chose the arrival of Brendan's son Declan as the plot you were most looking forward to.
EastEnders came second with 23.9% for Ian's sick lies about Jane, Emmerdale was third with 17.7% for Eve's clash with Chas and subsequent departure, while Coronation Street was fourth with 10.1% for Tina moving in with Tyrone and Tommy.
Don't forget to let us know which story looks best this week by voting in the poll below!