As an Assistant United States Attorney, John Kroger pursued high-profile cases against mafia killers, drug kingpins, and Enron executives. In , Kroger reveals how to flip a perp, how to conduct a cross, how to work an informant, how to placate a hostile judge. Starting from his time as a green recruit and ending at the peak of his career, he steers us through the complexities and ethical dilemmas in the life of a prosecutor, where the battle in the courtroom is only the culmination of long and intricate investigative work.