Mary learns there’s a traitor within her inner circle of advisers, and she’s determined to unmask the guilty party. Meanwhile, Elizabeth seeks Narcisse’s help as she tries to expand her power; and Catherine is desperate to reclaim some of her lost power.
In the fourth-season opener, Mary tests her brother after he meets with John Knox, because she’s unsure about whom she can trust. Meanwhile, Elizabeth schemes to sabotage Lord Darnley’s relationship with Mary.
PROPER NOTES: bad.muxing_bad.seekheads_eg.36m26s.and.9m22s_rule.12.1.1_get.KILLERS.proper