Freddi and Luther (upon arrival at Freddi's Cousin Calico's Ranch) come to find out that her hogfish have been rustled (which in Calico's way means "someone came in and took them without asking"). Luther and Freddi head to the town square, in search of clues to find the rustlers. While in Saltwater Stella's Soda Saloon, they stumble upon their first clue - a note with a secret combination on it. Freddi and Luther figure this must be important, so they must investigate where the combination is...
Source: Wikipedia, "Freddie Fish", available under the CC-BY-SA License.
Thus begins Freddi and Luther's quest to reveal the identity of Mr. Big, the head Hogfish rustler. This point-and-click adventure changes slightly each time, ensuring a unique procedure each play.