Lee takes his pal, Van Eyck (a former intel officer) to his country estate on a fishing excursion. But when Lee's sister asks Van Eyck to transport a small package to a contact in Germany, the baffled Van Eyck is thrown into a circle of spy games involving the Russians. He then crisscrosses Europe in order to outwit his adversaries, all the while falling for a beautiful escapee. He soon decides to offer his services to US intelligence.