Regardless of what the calendar says, Jack and Susan are always, eternally, 27 years old. They are destined for each other like Hepburn and Tracy, Dagwood and Blondie, Nick and Nora. They always acquire a shaggy white dog. In 1913, the world is thrilling to that fabulous invention, the motion picture. When the movies move West, Jack and Susan (and Tripod!) decide to go along with them, only to discover that not all of the bad guys are on the silver screen.