Charley experiences an unusual event one day at Grand Central Station in New York. While waiting for a train, he discovers an unmarked door and takes the stairs down, emerging on a mysterious "third level" of the station. On this level, the year appears to be 1895 instead of the present. Charley buys a ticket to Galesburg, Illinois from this time period. He tells his friend Sam, a psychiatrist, about this experience. Though skeptical, Sam later finds evidence that suggests the third level may actually exist. The story explores themes of escapism from modern pressures and the desire to travel to the past.