Following the premature death of a Confederate prisoner belonging to a small group of Cherokee Indians, young Lieutenant Blueberry finds himself, despite himself on the track of a strange envoy of the Rothschild bank who mysteriously disappeared. While in Washington strange agreements are being made under the ferrule of Alan Pinkerton, he embarks on a crazy adventure at the risk of his life. First volume of a new diptych signed by François Corteggiani and Michel Blanc-Dumont with a master's hand.