Not Rated | 1h 27min | Horror, Drama, Sci-Fi | 19 May 1966 (USA)
Operation Deep Freeze, a scientific expedition to Antarctica discovers unusual tree specimens. When specimens are shipped out for further study, the trees are accidentally introduced to a south seas Navy base, soon revealing themselves to be killer, acid-secreting monsters that live by night.
Director: Michael A. Hoey
Writers: Michael A. Hoey (screenplay), Murray Leinster (novel) and Arthur C. Pierce
Stars: Mamie Van Doren, Anthony Eisley and Billy Gray