Kelly was one of the first members of the Pack that Jack met, and he and Isobella both advised him to see The Foreman. A while later, he attempted to try and help Jack hold up a bridge that was collapsing, but by the time he had rushed over to the bridge, it had already collapsed.
Later, he told the story of the one-eyed truck to Percy and the rest of the Pack. He also gained a fear of strong winds after an accident in which he was blown over, but he got over this fear after he rescued Isobella from falling over. He later helped with the restoration of Great Waterton.