Daisy Wilder prefers the company of horses to people, bare feet and salt water to high heels and society parties. Then, in the dizzying aftermath of the attack on Pearl Harbor, Daisy enlists in a top-secret program, replacing male soldiers in a war zone for the first time. Under fear of imminent invasion, the WARDs guide pilots into blacked-out airstrips and track unidentified planes across Pacific skies. But not everyone thinks the women are up to the job, and the new recruits must rise above their differences and work side by side despite the resistance and heartache they meet along the way. With America's future on the line, Daisy is determined to prove herself worthy. And with the man she's falling for out on the front lines, she cannot fail. From radar towers on remote mountaintops to flooded bomb shelters, she'll need her new team when the stakes are highest. Because the most important battles are fought, and won, together.