The special instalment of the BBC soap will see Max bundling Stacey into a car and driving off after he finally manages to track her down following her disappearance, the Daily Mail reports.
In subsequent scenes, the pair are expected to be seen having a huge bust-up as Max (Jake Wood) orders Stacey (Lacey Turner) to tell the police that she was the real killer of villain Archie Mitchell.
Detectives who investigated Archie's death currently believe that Stacey's late husband Bradley was the culprit after he met his death while running from police who were about to take him into custody.
However, the soap's live episode on February 19 saw Stacey confessing to Max that she was responsible for the murder, leaving him determined to clear his son's name.
Speaking of the upcoming two-hander, a Walford source said: "This is going to be dynamite viewing. It has been in the planning for months, but we could only film it once the live EastEnders episode had gone ahead because we had to keep the Archie's killer storyline a secret from everyone, including the cast."
EastEnders' former executive producer Diederick Santer recently said that the episode will explore the full reasons of why Stacey attacked Archie and confirm "whether she really meant to kill him".
Max and Stacey's two-hander will air on Friday, March 26 at 8pm on BBC One.