S3, E5: Grateful for a future with a revived Francis (Toby Regbo), Mary (Adelaide Kane) considers signing away her claim to the English throne, and staying in France forever. Catherine (Megan Follows) learns that Nostradamus (guest star Rossif Sutherland) has returned -- with a new vision involving Francis' fate. Torrance Coombs, Craig Parker, Rachel Skarsten, Anna Popplewell, Celina Sinden, Charlie Carrick, Jonathan Keltz and Rose Williams also star.