Reign › Season 4

S4 E16: All It Cost Her

Name: All It Cost Her
Released: 2017-06-16

In the series finale, Mary changes the course of history with a decision she makes, and her perilous move for survival causes her to have a stunning realization. Meanwhile, Elizabeth steadies herself for war and becomes the instigator in Mary's demise.

Air date	Jun 16, 2017
Runtime	42 minutes
TMDB rating	★ 8.0/10