In 1941, beautiful Irvel Holland is too focused on her secret to take much notice of the war raging overseas. She’s dating Sam but in love with his younger brother, Hank—her longtime best friend—and Irvel has no idea how to break the news. Then the unthinkable happens—Pearl Harbor is attacked. With their lives turned upside down overnight, Sam is drafted and convinces Hank to remain in Indiana, where he and Irvel take up the battle on the home front. While Sam fights in Europe, an undeniable chemistry builds between Irvel and Hank but neither would dare cross that line. Then, two military leaders pay Irvel a visit at the classroom where she teaches. The men have plans for her, a proposition to join a new spy network. One catch: She can tell no one.