Black Sheep Ace is the exciting life story of Sammy Alpheus Pierce, a country boy from rural North Carolina who enlisted in the Army as a private first class and was accepted to pilot training as a young, enlisted man. Upon graduation, he was promoted to the newly created rank of flying sergeant and assigned to fly fighter airplanes. During World War II, over 2,500 enlisted Army men graduated from pilot training and became flying sergeants. Sammy was one of only eighteen who shot down five or more enemy airplanes and achieved the status of ace. His memoirs recount his highs and lows during pilot training and his experiences in the 8th Fighter Squadron, one of three fighter squadrons in the 49th Fighter Group in the Pacific Theater.

Sammy was forced to bail out of a P-40 Warhawk behind Japanese lines in October 1943. He was seriously injured and had to evade two thousand Japanese soldiers as well as native cannibals and headhunters to reach an Australian beachhead on the northeast coast of New Guinea. Following surgery in Sydney, Australia, Sammy returned to the United States for rehabilitation. When he returned to flying status, he became an instructor and test pilot in P-51 Mustangs, where he came closer to dying in an airplane incident than at any time in combat.

Sammy was recalled to the 49th Fighter Group in October 1944 for a second tour and was again assigned to the 8th Fighter Squadron. He arrived when his squadron was converting to P-38 Lightnings in preparation for General Douglas MacArthur's return to the Philippines. Sammy recounts hell on earth at Tacloban Airfield on Leyte Island, the most difficult and dangerous days of the entire war for the pilots and personnel of the 49th Fighter Group. His memoirs take the reader through the Philippines campaign to Okinawa and, finally, the surrender of Japan.