After Kate, Humphrey, and their three pups are forced to relocate their den to Wolf-burbia, they discover Amy, a friendly raptor that magically came to life after being uncovered during a big dig! The pups and their forest friends show Amy the wonders of their new world, and must work together and try to stop the diggers from unearthing the dangerous T-Rex before it's too late!

After the death of his Nobel Prize-winning father, billionaire physicist Jerry Cornelius becomes embroiled in the search for the mysterious "Final Programme", developed by his father. The programme, a design for a perfect, self-replicating human being, is contained on microfilm. A group of scientists, led by the formidable Miss Brunner (who consumes her lovers), has sought Cornelius's help in obtaining it. After a chase across a war-torn Europe on the verge of anarchy, Brunner and Cornelius obtain the microfilm from Jerry's loathsome brother Frank. They proceed to an abandoned underground Nazi fortress in the Arctic to run the programme, with Jerry and Miss Brunner as the subjects.

Kate and Humphrey head out into the woods to look for food to stock up on for winter, and they leave their three pups with their parents. But the pups and the rest of the pack must venture out in search of them after the duo get caught in a blizzard.