Nat has won a prize which she claims is the best prize ever but will not tell Helen and Hannah what it is so they turn to Adam to try and find out what it is.
The twins meet Nat Baker who has just arrived in Doveton with her family and cannot decide which of them will be the first to ask out her hunky older brother Adam to Nat's total disgust.
When the twins come to the rescue of a neglected Shetland pony, their father reports the matter to the RSPCA, causing the owner to take a drastic course of action.