When Hank the Cowdog, Head of Ranch Security, follows Little Alfred to an archaeological excavation, he runs into trouble in the form of a gorgeous golden-haired lady dog, a peanut butter sandwich, and an enticing, ancient, buffalo bone.
With the threat of prairie fires looming, security expert Hank the Cowdog takes on extra duties as Head of Fire Safety, while trying to resist the mouth-watering hens in Sally May's chicken house.
When his juicy T-bones disappear before he has a chance to enjoy them, Hank the Cowdog is convinced that a Bone Monster is loose on the ranch and determines to put a stop to its devious activities.
After Hank the Cowdog, Head of Ranch Security, collects clues from the chickens and the cat that indicate that the sky will fall, he springs into action to keep the ranch safe.