Lt. Josh McGraw, a boyhood friend of Col. Gallagher, arrives at the 918th with his crew and bomber as replacements. Gallagher is glad to see him, but McGraw pulls some reckless stunts because he has always felt overshadowed by Gallagher and wants to make a name for himself. As his exploits grow to ever more dangerous and defiant levels, Gallagher struggles with how to handle his old friend and still get his missions accomplished. But this only seems to inflame McGraw's resentment and rebellious attitude even more.