A student exchange program brings Frank and Joe to sun-kissed Greece. But the moment they hit the scenic port of Piraeus, they land in deep trouble. What starts as a street fight soon escalates to a hornet's nest of espionage, kidnapping, and diplomatic double cross.

Near Yugoslavia, the Hardys find themselves on a mission to rescue someone they don't know, for a cause they barely understand. Only one thing is certain -- if the brother team fails this border run, they'll be ancient history.