Lisa, a beautiful American co-ed traveling in Europe, falls in love with a brash and fearless author, critical of the government in Poland. Lisa soon finds herself caught in a web of international intrigue, on the run with this mysterious stranger. They are forced to pose as married American tourists in order to escape by train. Their passion burns, glowing brighter as the train pulls them closer to Paris, their destination. But as it does, the author feels the tug of the comrades he left behind, and must choose. His choice will either gladden or destroy the light heart of the lovely Lisa.