06/25/2025 (US)
Every second counts.
Overview
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.
2025 | 13 Episodes
Season 1 of Countdown premiered on June 25, 2025.
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