In the heyday of the 1970s underground, Bobby DeSoto and Mary Whittaker - passionate, idealistic, and in love - design a series of radical protests against the Vietnam War. When one action goes wrong, the course of their lives is forever changed. The two must erase their past, forge new identities, and never see each other again. Now it is the 1990s. Mary lives in the suburbs with her 15-year-old son, who spends hours immersed in the music of his mother's generation.