When does Star Trek: Discovery return?

Star Trek: Discovery premiered on September 24, 2017, on CBS and CBS All Access (later rebranded as Paramount+) It is the seventh Star Trek series and debuted in 2017 as the first since Enterprise concluded in 2005. The series follows the crew of the starship Discovery beginning a decade before the events of the original series. At the end of the second season, Discovery travels to the 32nd century, which is the setting for subsequent seasons. Sonequa Martin-Green stars as Michael Burnham, a science specialist on Discovery.
The series begins around ten years before the events of Star Trek: The Original Series. Commander Michael Burnham's actions start a war between the United Federation of Planets and the Klingon Empire. She is court-martialed, demoted, and reassigned to the USS Discovery.