Old west Sheriff named Barker is tealnkiller

Trapped on a remote island by a hurricane, a group discover a doctor has been experimenting on creating half sized humans. Unfortunately, his experiments have also created giant shrews, who when they have run out of small animals to eat, turn on the humans.

A reality TV crew charter a boat to an island for filming, one which the boat's captain had been to before and attacked by giant shrews, more than fifty years earlier.

Sheriff Bob Bartlett is called away from the rodeo to apprehend cattle rustlers.