Spring has sprung in the United Woodlands, and the animals of Woodland Intelligence (WI6) are celebrating with a barbecue. But when a mysterious attack from the skies bursts Beaver Dam wide open, the woodland is flooded! The head of WI6 suspects foul play.It's time to call Agent Weasel, woodland super-spy. Can he manage a daring underwater rescue? Will he notice the clues leading high into the treetops?