On September 15th, 1952 an American formation of F-84 Thunderjet fighter-bombers is flying towards the Yalu River, near the East China Sea, on the border between China and North Korea.

Escorting them is a flight of F-86 Sabres from the 336th Fighter Squadron, spear-headed by flight leader, and future jet ace Captain James Robinson Risner. When they encounter MiG-15s Risner chases the pilot all the way to China and then tried to rescue his wingman by pushing his stricken F-86 to safety.