Shelley appeared in the TV movie series Frederick Forsyth Presents. It was a set of six original spy thriller telefilms by internationally acclaimed author Frederick Forsyth. The first one was A Casualty of War, which aired in December of 1989. In it, Shelley played Monica Browne, a wealthy American horse-breeder and the love interest of retired British secret service agent Tom Rowse (played by David Threlfall) She was the only American among the predominantly British cast. She said, "They have a different approach toward working and in approaching their roles, which was very interesting for me." She added, "English actors are educated in a different system than (American actors) are, and they've done a lot more theater." It was filmed on location in England, Germany and Yugoslavia.