China, 1930s, during the ravaging civil war. General Pen entrusts O'Hara, an intrepid American adventurer, with the mission of providing a large sum of money to Mr. Wu with the task of buying weapons in Shanghai to help end General Yang's tyranny that keeps an entire province under his ruthless iron boot.

Hildy Johnson is an investigative reporter looking for a bigger paycheck. When an accused murderer escapes from custody, Hildy sees an opportunity for the story of a lifetime. But when he finds the criminal, he learns that the man may not be guilty. With the help of his editor, Hildy attempts to hide the convict, uncover the conspiracy and write the scoop of his career.