"The Nightmare Before Christmas" is the 850th episode of Holby City and the eleventh episode of the ninetieth series. It was preceded by "Hallelujah" and followed by "Just Get on With It". The episode was directed by David Tucker and written by Katie Douglas.
A terrifying blast from the past upsets Dom's plans for a perfect Christmas with Isaac.
In true Naylor fashion, Jac pushes her closest friend away as she waits for life-changing news.
Fletch is unnerved when he hears from his estranged father, but will it ruin AAU's Christmas?