After losing her parents, 15-year-old Isabel moves to a small town to live with her Uncle Paul. As she struggles to fit in, she befriends A.R.C.H.I.E., a talking robotic dog with super strength and x-ray vision. While Paul faces a re-election challenge from Veronica, a man named Hugh claims the high-tech canine belongs to him, pulling Isabel and her new friend into growing trouble.