Princess Alexandra of Romania is on a state visit to Washington, and Harm has been hand-picked by the SecNav himself to be her most reluctant escort. This episode was inspired by the delightful Audrey Hepburn/Gregory Peck film Roman Holiday. And as Harm's high-spirited Princess leads him and the CIA on a merry dance in the capital, they must also contend with an unknown assassin. To further complicate matters, Harm finds that he has a new neighbour, an attractive journalist (played by DJE's real-life wife, Nanci Chambers), who has more than a passing interest in him.