The plot revolves around an ape playing sports. Jack, a three-year-old chimpanzee who is the subject of an experiment involving sign language that is performed by Dr. Kendall. However, Dr. Kendall loses funding for his research and Mr. Kendall's boss, Mr. Peabody, sells Jack to a medical research lab, much to Dr. Kendall's dismay. Unfortunately, Dr. Kendall dies (offscreen) from a heart attack. Dr. Kendall had set up Jack to be taken away from the lab, but Jack was sent to Canada by mistake. In Canada, Jack befriends a lonely teenager named Steven Westover and his deaf sister, Tara . Steven soon discovers that Jack has an uncanny ability to play the sport of ice hockey and Jack joins Steven's junior league hockey team when it is discovered that there is no rule that chimpanzees can't play hockey. However, just before the championship, Dr. Peabody returns to reclaim Jack.