Princess Claude, a provocative and reckless young woman, makes a surprise visit home. Narcisse pressures Francis and Greer's wedding tour ends earlier than expected.
Vatican inquisitors punish those suspected of being Protestant, Lord Condé is abducted, Catherine plays matchmaker for Claude, and Narcisse reveals a dark secret about Francis.
Following a discovery, Bash and Francis formulate a daring plan. Mary has a radical proposal for Claude, and Greer realises she might be more connected to the Protestant movement than she thought.
Mary takes extreme measures as she tries to stop Francis from catching Condé. A jealous Catherine wants Narcisse to prove himself. Greer makes a decision that could end her relationship with Leith.
Mary is forced to do something she didn't expect. The rivalry grows between Francis and Condé. Claude searches for the truth about who really killed the twins.