Overview

• Created by Derek Haas for Amazon MGM Studios, Countdown premiered on Prime Video on June 25, 2025.
• Eric Dane leads a top-secret task force that recruits Jensen Ackles’s Mark Meachum to investigate the murder of a Department of Homeland Security agent in Los Angeles.
• Reviewers highlight the series’ explosive action sequences and cinematic staging during sun-soaked car chases and large-scale combat set pieces.
• Critics also commend the diverse ensemble cast and the show’s focus on evolving character relationships through its serialized storytelling.
• Some reviews note that the investigation occasionally relies on convenient plot shortcuts that undercut narrative momentum.