The TV series "Countdown," starring Jensen Ackles, was canceled after just one season by Amazon Prime Video primarily due to insufficient global viewership, despite having decent rankings within the US. The show aired 13 episodes from June to September 2025 and had some initial popularity but failed to develop enough international audience to justify the high production costs. The critical reception was mostly negative, with critics citing a cliché-ridden storyline and lack of character development, holding a low rating of 33-35% on Rotten Tomatoes. Although the first season ended with a cliffhanger and the creator Derek Haas expressed hope for a second season, the show was not renewed as Amazon prioritized worldwide audience engagement for expensive action series. Jensen Ackles and others involved expressed disappointment, acknowledging that sometimes industry decisions are beyond control. The cancellation also reflected the competitive environment on Prime Video, which maintained other successful action thriller shows instead.