Dirty Den is to get a shock on his dramatic return to Albert Square, with the discovery that his daughter Vicki is pregnant.
Den, played by Leslie Grantham, returns to Walford to seek revenge on crime boss Jack Dalton - the man believed to have tried to kill him in 1989.
But his first job will be persuading the daughter he has never met not to have an abortion.
Vicki will discover she is expecting a baby after a one-night stand with Spencer Moon - the younger brother of Queen Vic landlord Alfie.
She is the product of Den's liaison with underage Michelle Fowler - which shocked viewers 14 years ago.
A spokeswoman for the soap told the Daily Mirror: "It is true that Vicki becomes pregnant by Spencer - it's a case of history repeating itself."
Den's exit from the show was left open, although many viewers assumed he was dead after a confrontation with a gunman beside a canal.
But soap fans never saw his body fall into the water after the "fatal" shots were fired from behind an innocent looking bunch daffodils.