A Maritime Museum is to be opened on Sodor, by an Admiral. When Thomas picks him up from Brendam Docks, Salty tells Thomas the story about long lost treasure belonging to pirates, and also gives the clues as to where it has been buried somewhere on the Island. Unfortunately for the Admiral, this means he will be late for the opening, as Thomas becomes simply enraptured by the idea and can’t stop thinking about it for the whole journey! Most annoyed by distracted little Thomas terribly delaying the Admiral, the Fat Controller arranges for him to be transported by Harold the Helicopter instead. Despite this, Thomas decides he will find that treasure.