12 episodes
First episode: E1

After Aliens arrive, the story takes place in two time streams: 2017 and 2037. In twenty years, and by 2037, the world has been divided into a “Smart Earth” where artificial intelligence has created a utopian environment in which no diseases or crimes exist, and an “Ordinary Earth” where people still suffer from rampant plague and lawlessness.
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12 episodes
First episode: E1Quick answers about this series, release status, and episode totals.
Circle first aired on May 22, 2017.
Circle currently has 1 season and 12 episodes.
Circle is ended, and no upcoming episode is currently scheduled.