Curtis Pike and his family are selected to test a new home device: a digital assistant called AIA. AIA observes the family's behaviors and begins to anticipate their needs. And she can – and will – make sure nothing – and no one – gets in her family's way.
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.