*Luftwaffe pilot Lt Franz Stigler refused to shoot down near-destroyed Allied bomber *Instead he guided stricken pilot Lt Charlie Brown to safety *A phone call led to a tearful reunion of the two World War II veterans The lone Allied bomber was a sitting duck. Holed all over by flak and bullets and down to a single good engine, it struggled simply to stay in the air over Germany, let alone make it the 300 miles back to England.