The group is in hiding because the Nazis is Killing every Jew in Amsterdam. The Nazis is against the Jews. The Nazis wins the war, the only Jew that had lived is Mr. Frank. Mr. Frank is now upset and mad at the Nazis that killed his family.
Group/Jews v Nazis
Anne picks on Peter everyday and Peter doesn't like it really. Peter got mad and called Anne Quack Quack because apparently that's what they called her in school because she talks a lot.