Cover Up (1984 TV series)

Cover Up was a 1984-1985 American action-adventure series that aired on the CBS television network. It centered around a photographer (Jennifer O'Neill) and a former Green Beret (Jon-Erik Hexum) who work as secret agents for the United States government. The series is perhaps best known for the tragic death of Hexum after an on-set accident involving a prop gun. The season continued with actor Antony Hamilton replacing Hexum, but the show was ultimately cancelled at the end of its only season.

Healthy, Wealthy, and Dead (Season 1, Episode 18)
Dani (O'Neill) and Jack (Hamilton) travel to a resort in Mexico to investigate strange goings-on. Dani is captured and turned into a brainwashed assassin.