In 1859, the British and Americans coexist on the small island of San Juan, located off the coast of the Pacific Norhwest. They are on fairly good terms—until one fateful morning when an innocent hog owned by a British man has the misfortune to eat some potatoes on an American farmer's land. In a moment of rash anger, Lyman Cutlar shoots Charles Griffin's pig, inadvertently almost bringing the two nations to war. Tensions flare, armies gather, cannons are rolled out...all because of a pig!