When Annabelle Fortune, the fastest gunslinger in the wild west, inadvertently stops a stranger from attacking a train - and he wears a suit that enables him to fly! - the government believes she's the only one to have witnessed the Locomotive Reaper and survived to tell the tale. Promising to find out what he can about her missing father, the Director of the Secret Service persuades Annie to swear in. Too soon, her detested nickname re-stakes its claim.Partnered with Beau Slokam, whose penchant for gambling leads them straight to the Doom Gang, Misfortune Annie guides the smooth-talking Southerner in a chase through the Rockies, with her Cheyenne friend, Wontoa, rounding out their unlikely trio.When Annie again meets the Locomotive Reaper, his gadgetry proves far more advanced - and deadly - than even top scientists could have imagined.