The film begins with a group of several nurses arriving in Australia, having been some of the few evacuated before the Japanese captured their base. One of them is Lt. Janet "Davey" Davidson, who wanted to stay and fainted at the start of the evacuation and remains in a coma. An officer asks the other nurses to describe their journey up to that point, beginning a flashback. The flashback begins in California, as the girls prepare to set off for Hawaii. Davey is the kind, but strictly professional leader of the nurses unit. Lt. Joan O'Doul, another nurse, is revealed to have two fiancés because she cannot say no to a man. Davey covers for her by stopping the two from figuring out her relationship, and the nurses quickly get on the boat. While en route, the Japanese
bomb Pearl Harbor and the boat is rerouted to the Philippines. The survivors of another boat in the convoy board the nurses boat. One of the survivors, nurse Olivia D'Arcy, quickly irritates the other nurses due to her rude and uncaring attitude. Davey also takes an initial disliking to one of the soldiers, John Summers, but the two come to like one another over time. Joan earns the affection of a nervous marine named Kansas, whom she playfully teases. At Christmas, the soldiers and nurses hold a festive party to celebrate. Davey dances with John, while Joan gives into the advances of Kansas. While helping Joan and Davey get ready for the party, another nurse named Rosemary finds a necklace that belongs to Olivia. Joan and Olivia get into a fight, after which Olivia refuses to go to the party. After the party, Olivia reveals that she was to marry her fiancé on Christmas leave, but he was killed in the attack on Pearl Harbor; she watched him die. Since then, she has sworn to kill as many Japanese as possible. As the ship approaches the Philippines, Manila is declared an
open city and is again rerouted to land at a base in Bataan. Joan takes a liking to the Filipino children at the base, while Davey works with Capt. "Ma" McGregor to keep up with the large amounts of wounded and casualties amidst a lack of supplies. Olivia initially takes up the job of taking care of wounded Japanese POWs, but she cannot bring herself to kill even one. However, she and Davey begin to develop a more positive working relationship. Davey is reunited with John, where their romance solidifies before he is ordered elsewhere. The base eventually has to be evacuated as the Japanese advance. Olivia sacrifices herself to ensure the other nurses escape by suicide bombing the approaching enemies with a grenade. The troops create a makeshift "hospital" in the jungle, which is practically untamed despite being near a town. The nurses do their best as supplies dwindle, and casualties pile up from battle and disease. Joan reunites with Kansas, now leading a regiment of Filipinos and brings hopeful news of a convoy on its way. As Davey is once again reunited with John, she learns that Ma's son has undergone a double amputation while battling
malaria. She arranges for Ma to be with him as he dies, which puts her through grief but for which she is thankful to Davey. John then informs Davey that the Japanese blockade has been successful—not only is it impossible for a convoy to get through, but
General McArthur has been ordered to Australia as confidence in defending the island diminishes. As the front line collapses, Davey tries to persuade the Coronel to evacuate the base. Before they can, a bombing raid destroys much of the base and kills several nurses and doctors. The Japanese show no respect for international law, bombing clearly marked hospitals and ambulances. The survivors evacuate to a fortress island along with most others. Joan notably has to knock Kansas out with a rock as he refuses to surrender and wants to fight to the death. Things on the island start off well, but take a turn for the worse as bombing becomes more common. Within a few weeks, it becomes obvious that the Philippines will fall. John and Davey decide to get married, despite this being against military law. The base chaplain conducts a makeshift ceremony, and the two are married. Not long after, John and several other soldiers set out to Mindanao to try to secure supplies. Before he can return, the base financial department starts burning money and the nurses are told they are being secretly evacuated first. Initially hesitant, most agree to go. Joan gives many of her belongings away to her patients, and tells Kansas not to die. He says he never dies, which is not reassuring as every time he's said something never happens to him it does soon afterward. Davey refuses to leave, saying she promised John she would be here when he returns. Ma tells her John's expedition is considered lost, but only the officers were informed. Upon learning John is probably dead, Davey faints. The nurses evacuate, and not long afterward
the Japanese take the island. The flashback ends, with the officer saying he knows how to wake Davey up. He goes to her, and reads a heartfelt letter from John. John informs her he is still alive, still fighting, and still loves her. Davey wakes up and simply says, "John" and the movie ends. ==Cast==