A new trailer is available for Amazon Prime Video's new show, Countdown, starring Jensen Ackles. Jensen Ackles is a 47-year-old star best known for his work on the WB/CW show Supernatural, where his role as Dean Winchester earned him lifelong adoration from fans of the series. His new crime thriller series is set to premiere on June 25, 2025, exclusively on Prime, and we've finally been treated to a full-length trailer, offering a glimpse at what's to come.
The trailer for Jensen Ackles' new TV series shows him leading a charge against a high-stakes threat in Los Angeles. He plays an LAPD detective named Mark Meachum who leads a task force of misfits. The trailer explains that their squad is facing foreign threats posing a "Chernobyl-level" event. The stakes look massive, but the characters demonstrate evident charm and chemistry, signifying that it will be an exciting, fun, high-octane ride. View the full trailer from Prime Video's YouTube below:
What Countdown's Trailer Means For Prime Video's New Show
Countdown Looks To Continue Amazon's Crime Thriller Hot Streak
Amazon Prime Video has become the home for shows like Tom Clancy's Jack Ryan, Reacher, Bosch, and others of the same ilk, that see law enforcement officers or rogue agents dealing with threats on American soil. These shows are known for being action-packed, star-driven, and a ton of fun, and the trailer indicates that Countdown will continue to satisfy this market. Jensen Ackles has similar potential to Alan Ritchson to deliver the necessary charisma for this genre.

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Countdown's trailer looks exciting, particularly for those who are fans of Jensen Ackles. He recently commented about the comparisons between Mark Meacham and Dean Winchester from Supernatural, explaining how both are heroes with rough edges, willing to go rogue and bend the rules to do the right thing. This is a character he knows how to play, and the trailer exhibits that his character will have enjoyable chemistry with his fellow LAPD task force team .
Our Take On Countdown's First Trailer
Countdown Looks To Be A Huge Win For Jensen Ackles
Jensen Ackles has been a beloved actor for decades due to his role in Supernatural, but as is often the case with iconic TV stars, branching off into new roles can be a challenge. He found success in The Boys universe playing Soldier Boy, which I think will continue to be a hit for him, but Countdown can earn him acclaim in a different way, as audiences love a hero. Look at Alan Ritchson, for example, who earned mass praise for his role in Reacher, and is now earning roles in franchises like Fast & Furious and more.
Look at Alan Ritchson, for example, who earned mass praise for his role in Reacher, and is now earning roles in franchises like Fast & Furious and more.
Jensen Ackles has been a fan-favorite for the role of Batman in James Gunn's DCU. While it's still far from certain what direction Gunn plans to take with the character, achieving praise for a hit Prime Video series where he plays a rogue hero could further his cause. Countdown looks like an excellent opportunity to open new doors for Jensen Ackles in this stage of his career, demonstrating his strengths as a leading man, be it for Batman or something else.
Countdown
- Release Date
- June 25, 2025
- Network
- Prime Video
- Showrunner
- Derek Haas
Cast
- Mark Meachum
- Jessica CamachoAmber Oliveras
- Nathan Blythe
- Violett BeaneEvan Shepherd
- Creator(s)
- Derek Haas