After stealing the Tesseract during the events of Avengers: Endgame (2019), an alternate version of Loki and an Avenger known as (Y/n) are brought to the mysterious Time Variance Authority (TVA), a bureaucratic organization that exists outside of time and space and monitors the timeline. They give them a choice: face being erased from existence due to being a "time variant", or help fix the timeline and stop a greater threat. They end up trapped in his own crime thriller, traveling through time