Dropping on Amazon Prime in summer 2025, "Countdown" comes from prolific TV producer Derek Haas. A tense, high-adrenaline conspiracy thriller, "Countdown" begins with the high-profile murder of a federal agent and the intra-agency task force assembled to find the perp, who's still at large. But when the investigation into the heinous crime begins, it becomes clear that the murder was only the tip of the iceberg, setting into motion a much more dire series of events. At the center of it all is LAPD detective Mark Meachum (Jensen Ackles), a loose cannon and terminally ill detective standing between the city of Los Angeles and disaster.

At just 10 episodes, it didn't take many viewers long to breeze through the show's debut season. And since it's too early to tell whether it'll get picked up

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