Based on the award-winning children's book Hey! Get off Our Train! by John Burningham, this short animated feature tells the story of Ben, a young boy who falls asleep while watching a television documentary about endangered wildlife. Once asleep, he has a vivid dream in which his pet dog, Jim Jam, has come to life, and his toy train is now a special railroad that can travel though the world's unspoiled territories. Ben and Jim Jam discover that many of the world's animals are in danger, and together they protect their four-footed friends from human predators and opportunists who would destroy wilderness lands for financial gain.