A backwoods game warden and a local doctor discover that giant leeches are responsible for disappearances and deaths in a local swamp, but the local police don’t believe them.

An astronaut returns to Earth as the no-pulse host of an alien monster’s embryos; he is discovered by a loony farmer who find ways to feed his new critter.

An outlaw is left for dead by his gang after being shot. A year later, he is released from jail with one thing on his mind: Revenge.