Sarah Jane Smith is looking forward to spending the holidays with her Aunt Lavinia. However, when she goes to her home in the English countryside, she finds Aunt Lavinia missing and the locals being vague on the details of her disappearance.

In this special episode, Paddy and Tricia follow Sarah Jane Smith as she attempts to find her Aunt whilst dealing with a mysterious cult that inhabits the local area. Thankfully she some help in form of a present from an old friend. Can the mystery be solved by K9 and Company?