[1] Madeline Brenner, a German naturalized as an American, is being questioned by the United States Attorney for the Southern District of New York, who is considering treason charges against her.

Elliot describes how the Navy figured out the yacht was sunk by a German torpedo and learned the renegade submarine might be operating out of a secret base near the fictional town of Belgrana in an unnamed South American country.

Von Molter takes evasive action, but Madeline risks her life to fire a flare, revealing their location, as Young instructed her to do.

Von Molter shoots debris out the torpedo tube, to make the Americans think they have sunk the submarine.

When the U-64 reaches the meeting point at sea, Von Molter takes Gurnitz over to the other ship, along with Young and Madeline, who are to be killed.

The Navy refuses to allow him to return, so everyone waits a few tense minutes until, just as the U-64 prepares to fire, a squadron of US military planes appears, bombing the U-64, and saving the day.

Back in the present, Young argues to the U.S. Attorney that Madeline risked her life to save them all and should not be charged with treason.