It is 1907. Train wrecks, fires and explosions sabotage the Southern Pacific Railroad's Cascades express line. Desperate, the railroad hires the fabled Van Dorn Detective Agency. Van Dorn sends in its top investigator, Isaac Bell, hero of The Chase. Bell quickly discovers that the Wrecker recruits accomplices from among the down-and-outs to attack the railroad, killing them afterwards. Who is he and what does he want? Is he a striker? A criminal mastermind engineering some as-yet-unexplained scheme? Whoever he is, whatever his motives, the Wrecker knows how to create maximum havoc. Bell senses that he is far from done - indeed, it would seem that the Wrecker is building up to a grand act unlike anything committed before.