Countdown (2025) is a Crime, Mystery series that follows when an officer with the Department of Homeland Security is murdered in broad daylight, LAPD detective Mark Meachum is recruited to a secret task force, alongside undercover agents from all branches of law enforcement, to investigate. But the hunt for the killer soon uncovers a plot far more sinister than anyone could have imagined, kicking off a race against time to save a city of millions. Currently, you can watch Countdown on Amazon Prime Video, Amazon Prime Video with Ads. Streaming availability may vary by country and platform over time. It has a user rating of 7.2 out of 10 from 131 votes. Fans of crime series may also want to explore similar titles below.