It's Halloween, and strange things are happening on the ranch. When darkness falls, Drover reports that he has seen a witch, a ghost, a pirate, and two skeletons on Slim’s front porch . . . and, these terrifying creatures were saying something about “Tricker Trees.” Can Hank and Drover solve the mystery--before they get too spooked? USA Today calls the hilarious Hank the Cowdog series "...the best family entertainment in years."