At a rural railway station in Victorian England, Jim is a spunky Jack Russell Terrier who escapes his mean master at the circus, and is soon befriended by station porter Bob and lonely orphan Henry. His performing feats soon become a local attraction, and before long he's in the middle of a battle...
After a nuclear war, a group of children at an isolated farmhouse debate what the outside world might be like. Soon one of them leaves the house to investigate, and finds out that things aren't the way they thought.