John Stape has a cunning idea to save his wife as she goes on trial for murder, but things don't quite go as planned.
The killer returns to Weatherfield after discovering Fiz is in the dock for his crimes.
He identifies Rosie Webster as the person to help him and decides to kidnap her again - but there are major flaws in his scheme.
Graeme Hawley, who plays John, said: "There still seems to be gaps in the plan. Can John step in, in the nick of time and save Fiz?"
Watch the full interview with exclusive preview clips now.