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!

Tractor Ted takes us to see some amazing diggers and dumpers at work. The huge excavators are at work in the quarry, where we see them blasting rock and then down at the river clearing banks. Dave is working on his digger showing us different jobs he can use it for and the children have a tricky job trying to catch the lambs.