Coronation Street's Tracy Barlow (Kate Ford) will be left fighting for her life after an attempted murder on New Year's Eve.
The bolshie baddie - who will sensationally return to the ITV1 soap on Christmas Eve after being freed from prison following a retrial - is not going to be welcomed with open arms by everyone on the cobbles, namely her former flame Steve's (Simon Gregoson) new wife Becky McDonald (Katherine Kelly).
A production source told the Daily Mirror newspaper: "Anyone expecting things to calm down in the wake of the tram crash is in for a shock. The coming weeks are set to be a rollercoaster, climaxing in a huge drama on New Year's Eve when someone attempts to murder Tracy Barlow (Kate Ford).
"All the fingers are pointing at Becky McDonald, but it's going to be incredible."
Meanwhile Liz McDonald will exit 'Coronation Street' as part of a "massive" storyline in early 2011.
Actress Beverley Callard – who has played the bolshie barmaid on and off for over 20 years – won't rule out playing Liz again, and teased that her alter-ego may not be the only character saying goodbye to the soap in the new year.
She said: "I'm not saying I'll never play Liz again, they're not killing her off and they do want her to come back.
"It's a fantastic exit and it's absolutely massive, but Liz may not be leaving on her own!"
Despite being pleased to leave behind the show's "relentless schedule", Beverley admitted choosing whether to leave 'Coronation Street' was an "agonising decision" because she gets on so well with her fellow cast members.
She explained: "It really was an agonising decision to leave. I gave my notice in the summer and my exit will be at the start of next year. I've just got married, I want more time at home because it's such a relentless schedule.
"It was a massive decision because you know you've got a regular paycheque and you're working with all your best friends. I'll be very emotional saying goodbye to them. The tears will most certainly be flowing."
Elsewhere on 'Coronation Street', soldier Gary Windass (Mikey North) - who is suffering from post-traumatic stress after serving in Afghanistan - will be thrown out of the Army after attacking a police officer on a drunken night out.
An insider explained: "Gary is devastated when he is discharged from the Army. He pleads with his bosses but is told they have no option."