With shades of Memento and Inception, Tenet is shaping up to be a mind-bender in the best way possible. Expect huge action set pieces, mystery and a dash of sci-fi from Christopher Nolan’s latest.

Tenet features actor John David Washington playing an elite spy, military-type operative and time engineer, somehow all at once. A new trailer dropped inside Fortnite, and then on YouTube in May.

Tenet was previously scheduled for theatrical release on July 17, but it’ll now be released July 31, according to The Hollywood Reporter on Friday.

The movie’s plot has got something to do with a test that apparently doesn’t have a lot of survivors. “That test you passed?” Martin Donovan’s character says to him at one point. “Not everybody goes. Welcome to the afterlife.”

His mission: Stop World War III. The word “tenet” is a password that ensures people take him seriously.

In one scene, Washington sees bullet holes in glass but says the shooting hasn’t happened yet. If this movie is about reverse-engineering events by bending time and space, we’re in for a crazy, awesome ride.

Other scenes in the new trailer show numerous explosions, including one involving a very big plane, as well as conversations about the importance of reverse-engineering time to change the future.

So Tenet isn’t about time travel, it’s about the people who can manipulate time and thus future events. Maybe? We’ll have to wait for more trailers to reveal clues to Nolan’s sci-fi world where nothing seems to be set in stone.

Actors Martin Donovan, Robert Pattinson, Elizabeth Debicki, Aaron Taylor-Johnson, Kenneth Branagh and Michael Caine also star.

Also on a side note, it appears that Nolan will be showing “one of his iconic films to Fortnite this summer for a full length free screening for fans,” so stay tuned for more details on that.

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Originally published on May 21. Updated June 12 with new release date.