In war-torn China during the early days of World War II, a pragmatic American oil salesman named Jones travels across the volatile landscape with his loyal and somewhat bumbling mechanic, Johnny, in hopes of conducting business. Initially focused solely on profit, Jones's perspective begins to shift when they encounter a group of displaced Chinese refugees seeking safety after fleeing from the brutal advances of the invading Japanese army. Among the refugees is a strong-willed and compassionate American schoolteacher, Carolyn, whose dedication to helping her students survive amidst the chaos captures Jones's attention. Despite his initial reluctance to engage in the conflict beyond his immediate self-interest, the desperate circumstances and Carolyn's unwavering moral stance spur a possible change in his priorities.

As their journey continues, Jones, Johnny, and Carolyn face harrowing challenges as they navigate through enemy-infested territory. They must contend with constant threats from Japanese troops and struggle to protect the helpless refugees who depend on them for survival. The trials they endure and the people they encounter along the way force Jones to confront his own values, weighing the cost of self-preservation against the imperative of aiding those in dire need. Mirroring broader themes of courage and sacrifice, the unfolding events test the trio's resolve and shape their destinies as they move toward an uncertain future in a war-stricken land.