Amazon has unveiled the first trailer of its much-anticipated series "The Lord of the Rings: The Rings of Power" and it promises to transport viewers back to JRR Tolkien's fictional world of Middle-Earth.

Based around the fabled Second Age of Middle-Earth's history, when the rings were forged by Sauron, the show's first trailer was unveiled at a panel presentation during the San Diego Comic-Con on Friday.

The series, which is set to release on Prime Video in September, will bring back fan-favourite characters like Galadriel (Morfydd Clark), Elrond (Robert Aramayo) and High King Gil-galad (Benjamin Walker).

The three-minute-long footage teases all the major races in the show, including Hobbits, Elves, Dwarves, and Men, and introduces Clark's younger Galadriel.

It also includes a first look at actor Anson Boon's Sauron, the main antagonist of Tolkien's book series, as well as the fearsome creature Balrog.