Movie Story : Sir Billi, an aging veterinarian who still rides a skateboard, refuses to back down when corrupt police officers and powerful lairds come after Bessie Boo, a beaver on the run from the law. Though he is past his prime, he throws himself into a dangerous rescue mission that goes well beyond the call of duty. Along the way, he must outwit the villains and protect the fugitive who has no one else to turn to.