Meg starts spying for Puybaraud and is told to infiltrate the Guérin family, who are behind the anti-Semitic league. Meanwhile, Lepine arrives to take charge of the Parisian police department.

In the days leading up to the Dreyfus retrial, tensions are running high in the streets of Paris. Jouin takes a gamble and breaks a promise to Jeanne, and Lepine makes a public show of his authority.