Kat Slater and Alfie Moon are reportedly set for a huge row on "EastEnders" over Christmas.
The festive season will feature some drama in Albert Square when Kat (Jessie Wallace) discovers that her husband - played by Shane Richie - has a secret love child with her cousin Hayley (Katie Jarvis) after a drunken one night stand.
It's also said that the storyline - which is set to come to a head on Christmas Day (25.12.18) - will see Alfie shocked too, as he doesn't know Hayley has had the baby.
A source told The Sun newspaper's TV Bizarre column: "The scenes will be classic Slaters. It will be a huge row and will be carnage.
"It will hark back to the days of Kat yelling at Zoe about being her mum all those years ago.
"Alfie is going to have a big headache, come Boxing Day, and it won't be because of the Christmas wine."
Soap star Shane Richie is back on the show for the second time this year after initially reprising his role back in May.
Alfie's May return was kept firmly under wraps by "EastEnders" bosses after Shane met with executive producer John Yorke about a comeback, and the producers went to extreme lengths to ensure nobody knew he was back.
Shane added: "We had code names, censored scripts, cars with blacked out windows.
"Obviously John and the team wanted to keep it a surprise for everyone.
"It was exciting to be back at Elstree, especially without anyone knowing."
Before Alfie's "EastEnders" return earlier this year, viewers last saw the character in the soap's 2017 spin-off show, "Kat and Alfie: Redwater".
The programme saw Kat and Alfie head to Ireland to find her secret son, but the trip nearly killed the pair of them, and the series concluded with the fates of the beloved characters unknown.
Kat was involved in a potentially-devastating boat accident and Alfie, who has a brain tumour, and was last seen on a hospital bed.