A pilot and a smoke jumper find old grudges turning into renewed attraction when they're forced to rely on each other after a plane crash.

Lobo, a Chihuahua from New York City who feels he is truly a wolf in an undersized body, goes to Yellowstone National Park with his mistress and dreams of running wild with his wolf brothers.

Twin brother and sister, James and Morgan, embark on another adventure with their parents to explore the history, unusual geology, famous sites, plants, and animals of Yellowstone National Park. Sidebar notes contain additional facts about the area and describe the park's regulations and tourist facilities.

Twelve-year-old Jack, his younger sister, and the family's teenage foster child Troy go to Yellowstone National Park, where Jack's mother, a wildlife veterinarian, is investigating the report that wolves reintroduced to the park have killed a dog there.

Two teenagers become close as the citizens of their town fight over the packs of wolves that have been reintroduced into the nearby Yellowstone National Park.