As Jonah's grandmother gets murdered, Meyer Offerman, an old friend of Jonah's grandmother, tries to help him discover her killer, informing him that renegade Nazis have infiltrated America and are behind her killing. Jonah joins a covert organization dedicated to finding the Nazi infiltrators.
At Meyer's request, The Hunters welcome Jonah into their tribe. However, Jonah discovers the sinister plot of a new foe. Meanwhile, two Nazis plan to plant two bombs in New York City.
Jonah seeks advice from his grandmother's ghost when his faith is tested by The Hunt's hardships. The Hunters work hard to decipher the text of a malicious message, discovering that the Nazis were responsible for several major American events, including Watergate and Robert Kennedy's assassination.
While Millie visits Meyer Offerman's home and runs into Jonah there, The Hunters follow a trail of signs to a merchant's den, where they find a hidden underground vault full of things taken from Jews in the past.
Meyer has Jonah's bravery summoned. Alabama has become a haven for the Nazis, and The Hunters have come to put an end to it. Millie receives the bad news that have spread over the country.
A wedding brings The Hunters together amid a time of strife, but an untimely strike dampens their joy and raises questions about whether among them is a traitor.
Jonah verifies the Nazis' whereabouts and their attack preparations. However, the FBI detains Offerman before they can leave. Meanwhile, Morris receives his confirmation that there are Nazis in America.
The Nazis move a chemical substance imported from South America to a factory in New Jersey. Jonah blames himself for Murray's death in an explosion, and he tortures a Nazi scientist who admits that they slipped a chemical substance that kills in corn syrup.
The Hunters fight a fierce war to stop a horrible plague that threatens to consume the land's population. As Jonah is about to kill the neo-Nazi Liech, Millie tries to stop him.
Jonah comes face-to-face with Zuchs after he discovers that he disguised himself as Offerman after killing him, and he finishes him off. The Hunters make future plans, deciding to move to Europe to hunt the Nazis who escaped with the help of the post-World War II organization Die Spinne.