Rachel Miller and Émile Darcy, married Canadian Security Intelligence Service agents, live a peaceful life with their two daughters. However, everything crumbles for them when a shooting takes place near the American embassy.

FOR Season 1: Rachel and Émile both work for the Canadian Security Services. They are parents of two daughters and have an orderly family life. However, they will see their daily lives shattered when a shooting breaks out near the American consulate. The evidence reveals that the SSC was infiltrated, in one of its high-level sections, by a "mole" in the pay of the CIA. Rachel and Émile realize that the attack targeted a pacifist political dissident, an immigrant for 20 years from an Arab emirate, and renowned for his violence against his opponents. This man and his family are threatened from all sides. At the same time, Émile is entrusted with a secret mission by his bosses: the identification of the CIA double agent who is among them. In addition, the couple is given the mandate to find out who is behind the shooting and if other brilliant actions are expected.—Canon y mus

FOR Season 2: A year and a half after the discovery of the mole, Rachel Miller tried to free two Canadian mining engineers detained in the Maghreb, in the Ghanim region. At the same time, she is ordered to capture a French mercenary passing through Montreal, specializing in ordered assassinations. She must deal with her mother-in-law Maggie who obsesses over the circumstances of her son's disappearance. She then learns that a losing journalist is interested in her and threatens to make her identity public and reveal her position within the SSC. To add to this, she finds two obstacles in her path that are difficult to get around: her retired mentor, McKenna, who now works as a private consultant; and her hated and loathsome uncle, Philip, who has the contacts and knowledge she needs.—Canon y mus