1907: train wrecks, fires, and explosions sabotage the Southern Pacific Railroad's new express line ... The desperate railroad hires the fabled Van Dorn Detective Agency, who send their best man, Isaac Bell. He quickly discovers that a saboteur calling himself the Wrecker is attacking the Southern Pacific with accomplices recruited from down-and-outs - who are killed afterward. The Wrecker strikes wherever he pleases, causing untold damage and loss of human life. Who is he? What does he want? Is he an anarchist? A revolutionary? A criminal mastermind?