The synopsis for the upcoming series, tweeted by the official twitter page for the series (along with a map) is as follows:
One Ring to rule them all, One Ring to find them, One Ring to bring them all, and in the darkness bind them, In the Land of Mordor where the Shadows lie. Welcome to the Second Age.
In the Tolkien mythology, the Second Age was the time in which the Rings of Power, including Sauron’s One Ring, came into existence.
It’s also being kept under wraps as to what role Will Poulter (whose recent credits include Midsommar and Black Mirror: Bandersnatch) will be playing.
The Lord of the Rings series is being developed by J.D Payne and Patrick McKay, with Bryan Cogman serving as consultant on the project and J.A Bayona attached to direct multiple episodes.