The Great Postal Heist follows director Jay Galione's father, a 30-year US Post Office clerk, who was harassed, threatened, and fired for standing up for his colleagues. A moving indictment of the toxic culture and push to downsize, the documentary chronicles the journey of postal workers, experts, and advocates who experienced firsthand the abuses in the oldest federal agency in America and stood up against the USPS's notoriously violent work environment, featuring interviews with Ralph Nader and Richard Wolff. The atmosphere was a result of systematic dismantling and privatization of the trillion-dollar mail industry by lobbyists and politicians who seek to make profits at the expense of the mental health, living wages, and working conditions of their employees.