The Disappearances

Directed by Charles S. Dubin

Written by Luther Murdoch, Jerry Sohl

Cast: Patrick Duffy as Mark Harris, Belinda Montgomery as Dr. Elizabeth Merrill, Darleen Carr as Dr. Mary Smith

Released 1977

A made-for-television movie first airing on June 20, 1977 on NBC.
Elizabeth Merrill is kidnapped along with dozens of other scientists and taken to the island of Felicitos. Put under control by special mineral waters, they are forced to help construct a rocket ship by a Dr. Mary Smith who wants to flee the planet to find a better world to start a perfect civilization, with her controlling things.