Grant Mitchell's return to Albert Square will be far from a happy one as family lives hang in the balance.
The hardman, played by Ross Kemp, is forced back to Walford when his nephew Ben Mitchell and Jay Brown are kidnapped by the killers of Ben's boyfriend Paul Coker.
The Mitchells are thrown into chaos and Phil (Steve McFadden) desperately tries to get his son back.
But things take a turn for the worse when he collapses, forcing Grant to step in and take control.
Will he be able to find Ben and Jay, played by Harry Reid and Jamie Borthwick, or will he find himself in danger instead?
The episode airs on Monday September 5.