Reign 2×10 “Mercy” (Mid-Season Finale) – In the aftermath of an attack on the castle, a blood-thirsty Francis (Toby Regbo) makes a startling decision that will forever change his rule as the King of France, causing him to track the missing Narcisse (Craig Parker) with a newfound lust for revenge. Meanwhile, Mary (Adelaide Kane) is stunned to discover the truth behind Francis’ recent decisions and embarks on a treacherous mission of her own with Lord Condé (Sean Teale). Leith (Jonathan Keltz) urgently pleads with Greer (Celina Sinden) to flee the country after violence erupts across the land. Catherine (Megan Follows) receives an unexpected and erotic visit in her chambers after making a final decision regarding the fate of her daughter Claude (Rose Williams). Torrance Coombs, Anna Popplewell and Caitlin Stasey also star. Rich Newey directed the episode written by Wendy Riss Gatsiounis and Drew Lindo (#210). Original airdate 12/11/2014.