EastEnders will re-air one of the biggest episodes in the BBC soap's history next week.
Featuring live scenes, the now iconic hour-long episode saw viewers finally learn who killed Lucy Beale.
Not only that, but an even bigger twist saw her dead grandmother Kathy Beale return to the soap.
As the Beales took centre stage, a funny live mistake by one cast member left viewers in stitches - with it still remembered now.
EastEnders episodes are currently off air, while cast and crew are back on set filming after having to halt production in March due to the coronavirus pandemic.
Each Tuesday a classic episode from the past is aired on BBC One - with those already shown including Sharongate, and Christian and Syed's affair being exposed amid Syed's wedding to Amira.
Next up, and it's almost a year since Lucy Beale was murdered, with several characters in the frame for the death.
To celebrate the show's 30th anniversary the soap went all out, with the Beales at the forefront of events.
Featuring some special live scenes, one moment that will never be forgotten is "How's Adam?"
Tanya Branning actress Jo Joyner accidentally called Ian Beale actor Adam Woodyatt by his real name, in a scene with Ian's wife Jane.
Their reactions made the moment brilliant, while it didn't take anything away from the shocking scenes unfolding.
Jane was accused of killing stepdaughter Lucy, only for it to be revealed that she covered up someone else's crime.
Viewers were shocked in the second half flashback special, when it was finally revealed what happened the night Lucy died.
Her younger brother Bobby was unveiled as the killer, after chucking a jewelery box at her head and accidentally killing her.
The shocks didn't stop there though, as Phil Mitchell went to a meet a mystery person.
Kathy Beale, who had died off screen in 2006, suddenly stepped out of a cab live on air leaving the entire nation stunned.
Viewers will get to relive all these epic moments and more when the hour-long episode is aired again next Tuesday.
This episode also saw the end of 'Nasty Nick' Cotton who died from a drug overdose, with mother Dot Cotton arrested for not calling for help.
The scene echoed the very first death on the soap in the first episode back in 1985, with Reg Cox found in the same place in the same flat - with Nick shockingly revealed as his killer all those years later.
EastEnders' classic episodes continue Tuesdays at 7:30pm on BBC One.
