Riff Raff, a bold mouse pirate, searches for a missing clue that will help him and his cheese-loving crew complete a treasure hunt.

Zoey the chicken decides to use her imagination to have a beach day and bring her friends along to find buried treasure.

"Captain Awesome ventures into the depths of a museum to reclaim a mummy's ancient treasure"--

While visiting a friend of their grandfather's on Sullivan's Island, off the coast of South Carolina near Charleston, the Boxcar Children encounter mysterious activities related to rumors of a buried pirate treasure.