Summary
Jensen Acklesis returning to television in a leading role, starring in a new Prime Video crime thriller,Countdown,from the creator of the One Chicago franchise. Ackles has kept busy since the end ofSupernatural, booking brief runs onBig Sky,Tracker,andThe Boysas thevillainous Soldier Boy. He also narrated and made a guest appearance on The CW’s short-lived prequelThe Winchesters.
Prime Video has announced thatAckles will return to a starring role, headliningCountdownfromOne Chicagocreator Derek Haas. The Prime Video thriller marksHaas' first television project since leaving Wolf Entertainment in November 2022and exiting his role as the co-showrunner of Wolf Entertainment’sFBI: International, which airs on CBS, and his executive producer role onChicago Fire,Chicago Med, andChicago P.D.

What To Know About Countdown
Countdownfollows a suspicious murder in broad daylight. That leadsLAPD officer Mark Meachum (Ackles)to be recruited into a secret task force of undercover agents from all branches of law enforcement to investigate. However, as the truth of a more sinister plot becomes clearer, the team has to overcome their conflicting personal agendas to unite and save a city of millions. The first installment will consist of 13 episodes.
It’s unclear what the new project means for Ackles' characters onTrackerandThe Boys, though he could potentially continue to make guest appearances on both depending on the scheduling.
Althoughno other casting details have been revealed, it’s known that the project will be executive produced by Haas who also serves as showrunner. Amazon MGM Studios is producingCountdown, which is being described as a star vehicle for Ackles. The actor is a television veteran, spending 15 seasons asSupernatural’s Dean Winchester, in addition to earlier roles onDark AngelandSmallville.
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It’s unclear what the new project means forAckles' characters onTrackerandThe Boys, though he could potentially continue to make guest appearances on both depending on scheduling. There have also been recent comments aboutSupernaturalseason 16 and whether that could be revived but nothing is confirmed. For now,Acklesis bringing his veteran experience toCountdown.