Engineer Jake Holman arrives aboard the gunboat USS San Pablo, assigned to patrol a tributary of the Yangtze in the middle of exploited and revolution-torn 1926 China. His iconoclasm and cynical nature soon clash with the 'rice-bowl' system which runs the ship and the uneasy symbiosis between Chinese and foreigner on the river. Hostility towards the gunboat's presence reaches a climax when the boat must crash through a river-boom and rescue missionaries upriver at China Light Mission.
Can a girl from Little Rock find happiness with a mature French planter she got to know one enchanted evening away from the military hospital where she is a nurse? Or should she just wash that man out of her hair? Bloody Mary is the philosopher of the island and it's hard to believe she could be the mother of Liat who has captured the heart of Lt. Joseph Cable USMC. While waiting for action in the war in the South Pacific, sailors and nurses put on a musical comedy show. The war gets closer and the saga of Nellie Forbush and Emile de Becque becomes serious drama.