While visiting a ranch near Yellowstone National Park with his parents, Summer, and her parents, Teddy Fitzroy investigates the disappearances of bison and an irreplaceable necklace.

Eleven-year-old Roy lets himself find a loving family and a new home on the horse ranch which he and his older half-brother happen to come upon.

Of all the mysteries Hank has faced in his illustrious career as the Head of Ranch Security, the only one that still has him truly stumped is the key to unlocking Miss Beulah's heart. Why on earth would she go for a bird-brained bird dog when a specimen like Hank stands ready to sweep her off her feet? Could there be more to this problem than meets the eye? When Plato wanders off Billy's ranch and Beulah discovers he's lost, she tries to enlist Hank's...

Will disappearing Christmas turkeys doom Hank to spend the rest of his doggie days in exile or will Hank find a way to save his day?