The 511th Fighter Group arrives at Archbury to escort the 918 on the home leg of the shuttle mission. On the way Troper attacks a train making him 10 minutes late for the rendezvous. The 511th does not give the proper recognition codes and one pilot is shot down. On the ground an angry Lieutenant Col. Troper slugs Gallagher. Gallagher tells Troper to forget about it. They are ordered to train together. In London Troper gets drunk, insults Gallagher, and takes off with Gallagher's date Fay. Gallagher orders a brief at 0400, only 12 of the 511th pilots show up. Gallagher has Troper put under house arrest. Merritt leads the fighters and not one bomber is lost.