Katie will be at the centre of huge episodes later this month as dramatic scenes see her fall down a mineshaft, which could leave her life hanging in the balance.
Over the next few days, viewers will see Katie's fresh start turn slightly sour as she has more rows with Megan and even falls out with her good friend Gennie.
Katie's new husband Declan (Jason Merrells) is also left furious with her when he discovers that she set up Robbie with the damning CCTV footage a few weeks ago.
However, following one particular argument with her husband, Katie is caught up in a big accident while they are both riding on quad bikes on some of the land near Home Farm.
Declan watches on in horror as Katie falls down a disused mineshaft, but will he be able to rescue his wife? Or is Katie in deep trouble?
More details on the storyline will be revealed later in the month, but Sammy Winward - who plays Katie - has described it as her biggest plot to date…
Emmerdale airs the accident on Thursday, November 22 at 7pm on ITV1.