It is 1910 and newspaper publisher Preston Whiteway is offering $50,000 for the first daring aviator to cross America in less than fifty days. He is even sponsoring Josephine Frost. Frost's violent-tempered husband has just killed her lover and tried to kill her, and he is bound to make another attempt. Bell has tangled with Harry Frost before; he also knows that Frost won't be only after his wife, but after Whiteway as well.