The Navy vs. The Night Monsters

Operation Deep Freeze, a scientific expedition to Antarctica, discovers a group of unusual tree specimens. When they are accidentally introduced to the South Seas base, it becomes clear that they are not of this world. These killer monsters destroy everything in their path and multiply at an alarming rate. Lieutenant Charles Brown must find a way to stop the monsters before they overrun the place. Will they be able to save the base and themselves, or will they succumb to the deadly creatures?