In a future world, where global contamination has necessitated limited human contact, three young people with unique genetically engineered abilities are teamed up to wage war in virtual reality.
The Landon family travels to Glacier National Park to investigate why grizzly bear cubs are disappearing and becomes involved with a ten-year-old Mexican runaway boy.
The little old woman rides through the jungle in her magic pumpkin confident that she can outwit the tiger and gray wolf waiting to eat her for dinner.
While their mother investigates a series of bear attacks in and near Gatlinburg, Tennessee, Jack and Ashley learn about country music and Cherokee people from two new friends, one of whom is keeping a secret.
Twelve-year-old Jack and his family go to Yellowstone National Park, where Jack's mother is investigating the report that wolves reintroduced to the park have killed a dog there.
While she studies condors in the Grand Canyon a scientist's life is threatened, and the strange teenage computer whiz in her family's foster care might be involved.
Visiting Zion National Park with his family, twelve-year-old Jack encounters two mysteries, the strange behavior of a band of wild mustangs and the possibly sinister actions of his new foster brother, a Shoshone boy.
While at St. John National Park in the Virgin Islands for a seminar on coral reefs, the Landons help a wealthy thirteen-year-old to find his birth mother, who he believes is in danger.
