There's a crisis in the Florida Everglades as giant pythons are threatening the alligator population.

A British Squad is sent on a training mission in the Highlands of Scotland against Special Operations squad. Ignoring the childish "campfire" stories heard about the area, they continue with their mission and come across the bloody remains of the Special Ops Squad, and a fierce howling is pitching the night sky... With two mortally wounded men, they make an escape, running into a zoologist by the name of Megan - who knows exactly what hunts them. What began as what they thought was a training mission turns into a battle for their lives against the most unlikely enemies they would have expected - werewolves.

Our hero Colin is bitten by a Zombie; he dies and returns from the dead. We follow him as he wanders through suburbia during the throes of a cadaverous apocalypse.

Two amateurish hunters are attacked by creepy birds in the woods. Meanwhile seven delinquents are camping in the forest with their counselor in a program of reintegration to the society. Suddenly they are attacked by the birds and the counselor dies and one of the youngsters is wounded. The brutal Johnson imposes his leadership by force over the others while they are hunted by the birds. Meanwhile ranger Garrett finds one of the hunters passed out in the forest and takes him to the hospital.

A large man-eating crocodile terrorizes tourists and locals near Krabi, in Thailand. Michael Madsen plays a hunter stalking the immense reptile, while sub-plots include a rivalry between a foreigner, who owns a crocodile-farm, and a Thai man who plays a part in framing the foreigner for the crocodile's rampage.