Catherine's actions lead to chaos and bloodshed, leaving a trail of devastation in their wake; Catherine's desperate measures may prevent total war, or they could unleash forces beyond her control.

The planned kidnapping of King Francis goes awry but Catherine devises a new plan to allow her control of the country.

Prince Henri returns from war with a new mistress, Filippa, and a baby. Catherine resorts to extreme measures to produce an heir.

Catherine relinquishes her seat on the Privy Council, but not before securing a place for Anjou; a religious war is on the horizon as Queen Elizabeth lands in the Netherlands; France's saving grace may be a marriage.

Young Catherine begins to learn how to outwit the royal household in order to secure her future.

Queen Catherine begins to tell the story of her life to Rahima, a servant girl, revealing how she came to enter the French Royal Court at the age of 14.

Catherine aims to unite France under King Charles IX, pushing her agenda of a secular state; the Bourbons present an ambitious trade deal with Protestant England; as tensions rise on the Privy Council, the Guise's plan to reignite religious conflict.

With peace balanced on a knife's edge, Catherine attempts to calm tensions by allowing the Bourbons to pursue the trade deal with England. Catherine halts the investigation into the Duke of Guise's arson involvement.

Charles is ready to make his own rules, rejecting his mother's influence; with a rebellion on the rise, a mysterious plan is set, but when loyalty can be so easily swayed...miracles can happen.

Tensions escalate as Edith and her followers wield newfound power while Catherine grapples with political manipulations and betrayals; as Queen Elizabeth's schemes unravel, Catherine must strategize to secure power and navigate a web of deceit.