More on Sonia's reappearance
Curious to know how Bianca's sudden departure is written into the plot? Find out more about Natalie Cassidy's return.
Sonia Fowler returns to Albert Square to reveal she knows all about her big sister Bianca Butcher’s disappearance.
Bianca’s mysterious departure -– which devastates her family – comes after she finally discovers that her mum Carol Jackson has been sleeping with Connor Stanley.
Stepdaughter Whitney Dean, who has also been enjoying secret dates with the hunk, is heartbroken and confronts the pair over what they have been up to.
Hot-headed Bianca then has another screaming match with all concerned before fleeing her home and leaving her kids with husband Ricky.
Distraught Ricky has no idea where his wife has gone, until Sonia – who hasn’t been seen since the couple’s wedding last February – turns up in Walford unannounced.
She tells her mum and Ricky exactly what Bianca planned to do next and it is certainly not to return home any time soon.
An EastEnders insider said: “True to form, Bianca has got herself into big trouble while trying to protect her family and, scared about what might happen, she does a runner from Albert Square.
“When she suddenly goes missing Sonia turns up unannounced and drops the bombshell that she knows where Bianca is and what she is going to do next.
“And she has got no intention of coming back in the near future.”
As she enjoys her brief stint back in the Square, viewers will also learn what Sonia has been up to with husband Martin.
“The last time she was home, things were not going well with her marriage, so everyone will find out whether they have patched up their relationship,” said our source.
The popular couple left Walford to start a new life together with daughter Rebecca in 2007.
Fans of the BBC1 soap will be able to watch all the drama when Sonia reveals where Bianca is hiding out a week on Friday.