In 1925 Romania, young Marie-Therese Von Debretsy refuses the flirtatious advances of her husband's commanding officer. As a result, the cosmopolitan family is reassigned to a brutally bleak and dangerous outpost on the Bulgarian/Romanian frontier where both their relationship and humanity are severely tested.

When a train carrying atomic warheads mysteriously crashes in the former Soviet Union, a nuclear specialist discovers the accident is really part of a plot to cover up the theft of the weapons. Assigned to help her recover the missing bombs is a crack Special Forces Colonel.