After stealing the Tesseract during the events of “Avengers: Endgame,” an alternate version of Loki is brought to the mysterious Time Variance Authority, a bureaucratic organization that exists outside of time and space and monitors the timeline. They give Loki a choice: face being erased from existence due to being a “time variant”or help fix the timeline and stop a greater threat.Source: TMDb
Currently, you can only stream Loki on Disney+ in the United States.
Unfortunately, you cannot buy or rent Loki on any of the streaming services in the United States at the moment.
Loki was released this year (2021).