Four couples gather for dinner the night a mysterious and powerful comet passes overhead.

Armed with only one word - Tenet - and fighting for the survival of the entire world, the Protagonist journeys through a twilight world of international espionage on a mission that will unfold in something beyond real time.

In 2019, Jonas emerges from the cave into a strange but familiar world: the town of Winden, reeling from the recent disappearance of a young boy.

Barcelona, Spain. Adrián Doria, a young and successful businessman accused of murder, meets one night with Virginia Goodman, an expert interrogation lawyer, in order to devise a defense strategy.