Hank's third adventure opens with Hank in trouble again, so he heads to town to make a surprise visit to his sister, Maggie. Sounds innocent enough, but while in town, Hank contracts a mysterious case of "soap hydrophobia" - and ends up in the dog pound! Will he find a way out?

What happens when Hank the Cowdog finds himself stuck in town and facing the mean, monster Great Dane, "Rambo"? Rambo's only weakness is that he's a car-barkaholic. He just can't resist chasing and barking at passing cars. Join Hank as he runs the Eighteen-Wheeler Marathon, charms his nieces and nephews with tales of courage, and enlists Dog-Pound Ralph in a scheme to banish Rambo.