After leading the battle against the construction machines to save his woods, Jack the squirrel continues going to the home of his human friend, Collin. He brings Sister, and Bird, who can copy Collin's words-allowing Jack to 'talk' with Collin. When Jack shares what he learns with the woodland animals, Fox wants no part of learning anything human. Rat is too busy teasing the humans who spy on them. When Rat gets tagged and caged, Jack has to figure out how to save Rat while avoiding the humans who want most to capture Jack-and won't stop until they do.