The return of the day's mission interrupts, culminating in the off-stage crash of a bomber. Evans steers the visitors out of the office on a pretext, allowing Dennis time with Martin, who reveals that they attacked the wrong target. Martin urges him to keep quiet about the mistake, because the two cities are indistinguishable, until they can finish the job. As the curtain comes down on Act I, Dennis reminds Martin that Kane must be told because he is in command.