After decades of government service, and the loss of an eye saving the life of the President of the United States, William McKinley, top Secret Service agent "Booster" Cogwheel is fitted with a CYBER Neck-Tick Artificial Eye that changes his outlook on everything. Not ready to retire, he's inducted into the US Marshal's new overseas service, the Tesla Rangers. He's then involuntarily paired with a young, inexperienced British Peer, Lady Penelope Worthyman, who has the stated desire to become an investigator. Together they're sent to the newly acquired US territory of Iberia to stop "The Count", who heads up a shadowy organization of zealots fighting against the US occupation of the Iberian peninsula after Iberia lost the war. Their work is cut out for them, especially when Booster discovers his new partner has an oddly compelling secret she needs to get off her chest, and even moreso when the pair are told that fifty-five Marshals had already been sent to do what the two are tasked to do - and not a one of them had even made it to Iberia alive.