Battle at the Binary Stars

"Battle at the Binary Stars" is the second episode of the first season of the American television series Star Trek: Discovery, which is set roughly a decade before the events of the original Star Trek series and shows the beginnings of the Federation–Klingon cold war. The episode was written by showrunners Gretchen J. Berg and Aaron Harberts, from a story by series co-creator Bryan Fuller, and was directed by Adam Kane.

Sonequa Martin-Green stars as Michael Burnham, the First Officer of the USS Shenzhou. Series regular Doug Jones also appears in the episode, which serves as the second in the series' two-part premiere that act as a prologue to the rest of the series, setting up a season-long story arc for Burnham. Guest starring for the two-part premiere are Michelle Yeoh as Philippa Georgiou, captain of the Shenzhou, and Chris Obi as the Klingon leader T'Kuvma.

"Battle at the Binary Stars" was released on CBS All Access on September 24, 2017, along with the previous episode. The two-part premiere was believed to have caused record subscriptions for All Access, and received mostly positive reviews from critics, particularly for Martin-Green's performance.