When fun-loving glamour girl Quintessa Beaumont learns the Navy has established the WAVES program for women, she enlists, determined to throw off her frivolous ways and contribute to the war effort. No-nonsense and hoping to make admiral, Lt. Dan Avery has been using his skills to fight German U-boats. The last thing he wants to see on his radar is a girl like Tess. For her part, Tess works hard to prove her worth in the Anti-Submarine Warfare Unit in Boston--both to her commanding officers and to the man with whom she is smitten. When Dan is assigned to a new escort carrier at the peak of the Battle of the Atlantic, he's torn between his lifelong career goals and his desire to help Tess root out a possible spy on shore. The Germans put up quite a fight, but he wages a deeper battle within his heart. Could Tess be the one for him?