Watch Reign Season 3 Episode 18 online via TV Fanatic with over 6 options to watch the Reign S3E18 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, Netflix, YouTube Purchase, and Google Play.

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Episode Details

On Reign Season 3 Episode 18, Mary must battle Elizabeth in order to secure her crown in Scotland while Catherine finds Charles has changed on the season finale.

Rating: 4.7 / 5.0 (13 Votes)
Episode Number:

Reign Season 3 Episode 18 Quotes

There can only be one Queen, and I had to choose mine.

Lola [to Elizabeth]

I am Scottish. This country is in my blood as I know it is yours.