Original air date: 09/24/2017 Runtime: 42:49 min. Series premiere. While patrolling Federation space, the U.S.S. Shenzhou encounters an object of unknown origin, putting First Officer Michael Burnham (Sonequa Martin-Green) to her greatest test yet. Starring Sonequa Martin-Green, Michelle Yeoh, Doug Jones.
Original air date: 09/24/2017 Runtime: 38:29 min. Face to face with Klingon vessels, the U.S.S. Shenzhou prepares for the possibility of war if negotiations fail. Amidst the turmoil, Burnham looks back to her Vulcan upbringing for guidance. Starring Sonequa Martin-Green, Michelle Yeoh, Doug Jones.
Original air date: 10/08/2017 Runtime: 49:25 min. With tensions and stakes high as Starfleet continues in their efforts to end the war with Klingons, Burnham begins to settle in to her new position aboard the U.S.S. Discovery. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, and Mary Wiseman.
Original air date: 10/15/2017 Runtime: 46:41 min. While on a mission, Lorca unexpectedly finds himself in the company of prisoner of war, Starfleet Lieutenant Ash Tyler (Shazad Latif) and notorious intergalactic criminal, Harry Mudd (Rainn Wilson). Burnham voices her concerns about the repercussions of the spore drive jumps on "Ripper". Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman, Shazad Latif. Guest starring Rainn Wilson.
Original air date: 10/22/2017 Runtime: 44:38 min. The U.S.S. Discovery crew is intrigued by new addition, Lt. Ash Tyler. Sarek seeks Burnham's help, rekindling memories from her past. Admiral Cornwell questions Lorca's tactics. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman, Shazad Latif.
Original air date: 10/29/2017 Runtime: 46:51 min. As the U.S.S. Discovery crew attempts to let loose at a party, an unwelcome visitor comes aboard bringing about a problematic and twisted sequence of events. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman, Shazad Latif. Guest starring Rainn Wilson.
Original air date: 11/05/2017 Runtime: 40:51 min. The U.S.S. Discovery is tasked with a high priority mission to planet Pahvo and learn the science behind the Klingon's cloaking technology. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman, Shazad Latif.
Original air date: 11/12/2017 Runtime: 46:58 min. Bypassing Starfleet's orders, Lorca uses the U.S.S. Discovery crew's ultimate asset, the ship itself, in an effort to end the war with the Klingons once and for all. Starring Sonequa Martin-Green, Jason Isaacs, Doug Jones, Anthony Rapp, Mary Wiseman, Shazad Latif.
Original air date: 02/04/2018 Runtime: 48:56 min. Back on the U.S.S. Discovery, Burnham and the crew are faced with the harsh reality of the war during their absence. In order to move forward, Starfleet must use unconventional tactics and sources to take their next action against the Klingons.
Original air date: 02/11/2018 Runtime: 45:13 min. Season one finale. With Georgiou at the helm of the plan to end the Klingon war once and for all, the U.S.S. Discovery crew struggles to fathom and tolerate her hostile tactics. Memories of past hardships are rekindled within Burnham.