Coronation Street spoilers follow from Monday's episode (19 May), which is available to watch now on streaming service ITVX but hasn't yet aired on ITV1.
Coronation Street airs dark scenes tonight as evil Mick Michaelis goes on the attack against Craig Tinker. Is he about to become a killer?
The shocking storyline airs as Mick's behaviour gets even nastier following revelations over his wife Lou's past with their old friend Kit Green.
As tensions between the two men rumble on, Kit taunts Mick over how Lou isn't as loyal as he'd like to believe.
Kit has just figured out that he could be the biological father of Mick and Lou's 16-year-old son Brody, who has just been released from the Secure Training Centre (STC).
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As Mick goes into meltdown over the possibility that he isn't Brody's dad, the show explores the upsetting reality of Lou's home life for the first time.
Mick turns violent as he demands answers from Lou, then flees in his van as he considers his revenge against Kit.
Craig, who's determined to prove himself on the first day of his CID training, pulls over Mick at the Weatherfield Precinct for drink-driving.
At breaking point and believing that he doesn't have much left to lose, Mick violently attacks Craig with a bat and leaves him for dead. Could this horrific incident be the end for Craig, who's leaving the show after 14 years?
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A statement released from the show previously teased: "Has PC Tinker reached the end of the thin blue line? With Craig’s life hanging in the balance, viewers will see him fight for every breath."
Wednesday's episode (21 May) sees Craig rushed to hospital, where he desperately tries to make his police colleagues aware of who was responsible for attacking him.
Colson Smith, who plays Craig, recently said: "I can't wait for people to see Craig's final scenes. It is exactly the exit I wanted for him and we are all really proud of what we filmed in those final weeks.
"It was actually great fun. I was walking around covered in fake blood for days and I was chuffed that I got to work with so many brilliant people in this final storyline."
Coronation Street fans can see how the scenes play out in full at 8pm tonight on ITV1, or right now on ITVX.
Coronation Street airs on Mondays, Wednesdays and Fridays at 8pm on ITV1 and streams on ITVX.
Read more Coronation Street spoilers on our dedicated homepage
If you've been affected by any of the issues raised in this story, organisations including Refuge and Women's Aid can provide further support and information. The 24-hour, freephone National Domestic Abuse Helpline is 0808 2000 247.
The US National Domestic Violence Hotline is 1-800-799-SAFE (7233), or text LOVEIS to 22522.
