The ranch is in the grip of a sweltering summer heat wave, and to make matters worse, Bruiser the Rottweiler is on the loose. First Bruiser attacks a defenseless fawn, then he threatens to come after the Hank the Cowdog, the Head of Ranch Security! It's rumored that Bruiser is all talk and no action, but when Hank gets a look at the rottweiler's sharp teeth and giant body, he's not sure what to think. Can Hank put this cracy canine in his place? Or are our hero's dog days numbered?