Preview Star Trek: Discovery season 4 episode 9 "Rubicon" with 12 newly-released images

Pictured: Patrick Kwok-Choon as Gen Rhys of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

FEBRUARY 14, 2022 - As the second part of season four of Star Trek: Discovery heats up, Paramount+ has released new stills ahead of this week’s episode, which premieres on the streaming service on Thursday, February 17th.

In this week’s episode, according to Paramount+, “Captain Burnham and the U.S.S. Discovery race to stop Book and Ruon Tarka from launching a rogue plan that could inadvertently endanger the galaxy.”

“Rubicon” is written by Alan McElroy and directed by Andi Armaganian. Browse the pictures below for a sneak peek, and head to Paramount+ to catch up on the rest of Discovery season four, now streaming.

Pictured: Shawn Doyle as Ruon Tarka and David Ajala as Book of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Shawn Doyle as Ruon Tarka and David Ajala as Book of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Doug Jones as Saru and Wilson Cruz as Culber of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Sonequa Martin-Green as Burnham of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Sonequa Martin-Green as Burnham of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Sonequa Martin-Green as Burnham and Rachael Ancheril as Commander Nhan of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Sonequa Martin-Green as Burnham and Rachael Ancheril as Commander Nhan of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Sonequa Martin-Green as Burnham and Rachael Ancheril as Commander Nhan of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Sonequa Martin-Green as Burnham, Emily Coutts as Detmer and Rachael Ancheril as Commander Nhan of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Doug Jones as Saru of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Patrick Kwok-Choon as Gen Rhys of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.

Pictured: Shawn Doyle as Ruon Tarka and David Ajala as Book of the Paramount+ original series STAR TREK: DISCOVERY. Photo Cr: Michael Gibson/Paramount+ (C) 2021 CBS Interactive. All Rights Reserved.