"Do They Know It's Christmas" is the 511th episode of Casualty and the 17th episode of the 20th series.


Guppy is elated when he visits his father and they begin to settle their differences. However, his world soon crumbles when a shocking request from Jas leaves him in an impossible position. Rumours about Nina being promiscuous ruin her chances of a reconciliation with Abs, and Harry tries to crack the whip with the staff, whose festive spirit leaves him out in the cold.

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