During World War I, a goat named Billy was adopted by a platoon of soldiers and made his way across the ocean to be part of the war effort. Billy was smuggled into the front lines, got imprisoned for treason, saved the lives of his comrades, was promoted for bravery and came back home a decorated war hero! This charming true story follows Sergeant Billy from his small prairie town to the trenches of World War I and back, through harrowing moments, sad moments, moments of camaraderie and moments of celebration.