Timmy Musket was the son of early Quahog pioneer Miles "Chatterbox" Musket and Jane Musket who died as a child and was buried on Block Island.

When Peter Griffin is lead to believe a restaurant placemat is a treasure map, clues lead the town to the island to dig up Timmy. Inside the coffin, they discover another clue that sends most of the town to McCoy Stadium, home of the Pawtucket Red Sox.