Stone Fallen is not your average 15-year-old boy. Then again, neither is his friend Ella Costello. For years Stone and Ella have spent their summer vacations snooping around town and uncovering secrets, even if the secret is as simple as a bunch of old gardening magazines from the 1940's. This year Stone and Ella go walking in Newman Park which is just up the street from where they live. Together they discover an old box car with the words "The Time Train, 1882" painted on its side. Join Stone and Ella as they board the Time Train, learn its secrets, meet Jesse James, and become part of a secret association.