Mark Meachum (Jensen Ackles) in 'Countdown.' Prime Video Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text Jensen Ackles is sharing his reaction to the news that Countdown was not renewed at Amazon's Prime Video for a second season. The crime thriller debuted its first season in June before wrapping up its 13 episodes in early September following a weekly rollout. The series followed LAPD officer Mark Meachum (played by Ackles), who joins a secret task force to investigate a suspicious murder, but uncovers a sinister plot that requires the team to unite and save millions in the city. On Friday, Prime Video announced it would not be renewing Countdown, despite it spending a short time on Nielsen's top 10 U.S. streaming charts over the summer. Related Stories Movies Colin Hanks on John Candy's Comic Genius, Ryan Reynolds and How Bad Guy Roles "Can Be Liberating" TV 'Butterfly' and 'Countdown' Canceled After Single Seasons at Prime Video Ackles took to his Instagram to share his thoughts, saying, "As some of you may have seen already, Countdown did not get picked up for another season. Amazon's gonna let it go, and it's a bummer because I had such an amazing time making that show. Had an absolute blast with the cast and the crew." The Supernatural alum went on to express his appreciation for creator Derek Haas and the show's writers, as well as Amazon "for giving us the opportunity" to make the series. "Sometimes you can set out to do your best and check all those boxes, and ultimately it's out of your hands. That's the way it goes in this industry," Ackles added before concluding, "That's the end for Mark Meachum. ... But I'm thankful for the experience. We'll see you down the road on something else, I guess." Countdown also starred Jessica Camacho, Eric Dane, Violett Beane, Elliot Knight, Uli Latukefu, Rachel Armstrong and Bogdan Yasinski. View this post on Instagram A post shared by Jensen Ackles (@jensenackles) THR Newsletters Sign up for THR news straight to your inbox every day Subscribe Sign Up trailers Simu Liu, Melissa Barrera Play Spy Games in 'The Copenhagen Test' Teaser The Hunting Wives Real 'Hunting Wives' Cast Reacts to 'SNL' Spoof: "My Life Is Made" Live Feed Charli XCX Crashes Role Model's 'Saturday Night Live' Performance Live Feed Tina Fey and Seth Meyers Make Surprise 'Weekend Update' Appearance With Amy Poehler on 'SNL' Live Feed Amy Poehler Slams AI Actress Tilly Norwood on 'Saturday Night Live': "You'll Never Be Able to Write a Joke, You Stupid Robot!" Live Feed 'Jurassic World: Chaos Theory' Season 4 Trailer Debuts at New York Comic Con (Exclusive) trailers Simu Liu, Melissa Barrera Play Spy Games in 'The Copenhagen Test' Teaser The Hunting Wives Real 'Hunting Wives' Cast Reacts to 'SNL' Spoof: "My Life Is Made" Live Feed Charli XCX Crashes Role Model's 'Saturday Night Live' Performance Live Feed Tina Fey and Seth Meyers Make Surprise 'Weekend Update' Appearance With Amy Poehler on 'SNL' Live Feed Amy Poehler Slams AI Actress Tilly Norwood on 'Saturday Night Live': "You'll Never Be Able to Write a Joke, You Stupid Robot!" Live Feed 'Jurassic World: Chaos Theory' Season 4 Trailer Debuts at New York Comic Con (Exclusive)