A mystery novelist's detective skills are put to the test when he attends a party where a murder is committed.
After a demonstration of new PT boats, navy brass are still unconvinced of their viability in combat, leaving Lt. "Rusty" Ryan frustrated. After the attack on Pearl Harbor, however, Ryan and his buddy Lt. Brickley are told they can finally take their squadron into battle. The PT boats quickly prove their worth, successfully shooting down Japanese planes, relaying messages between islands, and picking off a multitude of enemy ships.
When misfortune hits hard on the Jordan family of Chicago's upper class, Bonnie Jordan, a dazzling and witty girl, finds a job as an aspiring reporter; however, his naive younger brother Rodney takes a twisted path and gets involved with the wrong people.
