Navy brat Isobel Blake was the daughter of Captain John Blake, who was assigned to Dutch Harbor, Alaska. He was brainwashed by the Teacher into becoming a traitor. The navy brought in Lash Lightning to investigate his case. Lightning assumed that Isobel was in on the plot and impersonated a spy, telling her he'd been sent by the spy ring to take her. Isobel played along in hopes of clearing her father's name. But after a Japanese surprise attack both gave themselves away--Lightning changed to his superhero identity while Isobel leaped into action to help shoot down the planes. The two realized they were on the same side and went off to fight the Teacher.