A college freshman finds herself stranded in Arizona with no place to stay and nowhere to run. Cabin fever closes in on an isolated park ranger, as two sinister beauties lurk in the desert outside his door. A California divorcee is starting a promising new life. But her young son knows better—because he's seen what's creeping outside the window. A cross-country traveler is on a journey of self-discovery. But one tourist trap holds its own dreadful surprises....

Four strangers with one thing in common: a mysterious train choking the sky with black smoke, charging trackless across the American night...and carrying an unstoppable evil, raised from the bowels of history, that will bring their worst fears to life.