A scientific expedition searching for fossils along the Amazon River discover a prehistoric Gill-Man in the legendary Black Lagoon. The explorers capture the mysterious creature, but it breaks free. The Gill-Man returns to kidnap the lovely Kay, fiancee of one of the expedition, with whom it has fallen in love.

CAST: Richard Carlson, Julie Adams, Richard Denning, Antonio Moreno, Nestor Paiva, Whit Bissell

DIRECTOR: Jack Arnold

RUN TIME: 79 min