The Navy vs. the Night Monsters

American Navy weather station based on Gow Island in the South Pacific is interrupted by the pending arrival of a C-47 transport aircraft for refueling. A team of scientists, an Air Force flight crew, and a cargo of specimen finds from their completed expedition to the Antarctic. The cargo consists primarily of penguins, plus several prehistoric trees taken from a thermal basis found in the midst of the frozen tundra. The planted prehistoric trees have grown into acid-secreting, carnivorous monsters that move about Gow Island at night, at will. They reproduce fast and eventually cut off the island with their growing numbers.