Katy gets an early Christmas present after she helps Faye learn her lines for the role of Mary in the Nativity play.
On the day Faye gets stage fright and pulls out of the show, so the mum-to-be takes her place. However, her portrayal becomes very realistic when Katy realises her baby is coming.
Dad Chesney gets a frantic phone call from his sister Fiz but can he get to Katy, after he's left stranded in a forest dressed as a festive elf?
Georgia May Foote, who plays Katy, said: "She gets these stomach pains and goes into labour, but will Chesney make it on time?"
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