Plot-wise, all we know so far about Tenet, aside from its use of time “inversion” (no, actual time travel doesn’t factor in), is that it follows a secret agent and his allies from stopping World War III. This conflict will involve something worse than nuclear annihilation, and one of the antagonists, if not the main one, a Russian national who’s able to communicate with the future. The cast includes John David Washington, Robert Pattinson, Elizabeth Debicki, Kenneth Branagh, Michael Caine, Dimple Kapadia, Aaron Taylor-Johnson and Martin Donovan.
Article source: https://www.cinemablend.com/news/2547682/tenet-is-expected-to-push-the-spy-genre-to-new-heights-because-christopher-nolan