Emmerdale pictures reveal a first look at the younger actors replacing Jeff Hordley, Will Ash and Lucy Pargeter on the ITV soap for a special flashback episode.
The show will go back to 1991, with Cain Dingle and Chas Dingle featuring, alongside their secret brother Caleb Miligan.
It follows Caleb's arrival on Christmas Day, where he confronts brother Cain for lying to him years ago about their mother Faith.
Caleb shows up after years of believing his mother died 30 years ago, only to discover she passed away in October this year.
As Cain and Caleb meet again, the soap takes viewers back to their first meeting over 30 years earlier - and reveals what led to Cain's deceit.
We also see what was going on with Chas at this time, while present-day Chas is yet to find out she has another brother.
New pictures show the actors portraying young Cain and young Caleb alongside Jeff and Will, while another photo sees a younger Chas with her brother.
For the special flashback scenes, Jeff, Will and Lucy will be replaced with younger actors - with Aiden Kane, Maddy Barker and Riccardo Drayton cast in these roles.
Other images show the trio in character in separate scenes, ahead of the episode airing on Boxing Day.
Actors Jeff and Will recently teased the big scenes, and reacted to seeing the younger cast members playing their characters.
Jeff spilled: "We were lucky enough to get to meet [the actors playing the younger characters]. They watched us do a scene and then we watched them do a scene. The two young actors were absolutely brilliant. We need to see more of them."
On Cain's lie, he also explained: "We have this flashback episode where you get to see young Cain and young Caleb when they first meet. The reason he said that their mother was dead, I don't know if you remember the episode we did in The Woolpack with Cain and Chas, and he talks to Chas about his coping mechanism for when his mum was letting him down was telling people his mum had died.
"That was his way of dealing with it so this is why he said it to Caleb, it's not just that she's dead, get lost, it's got a reason for it."
Emmerdale airs weeknights at 7:30pm on ITV1 and ITVX, with an hour-long episode on Thursdays.
