An alien child has been left behind on Earth. He befriends two human children and it is up to them to find a way to get him back home while they try to keep him secret.An alien child has been left behind on Earth. He befriends two human children and it is up to them to find a way to get him back home while they try to keep him secret.An alien child has been left behind on Earth. He befriends two human children and it is up to them to find a way to get him back home while they try to keep him secret.