Daniel Dae Kim in 'Butterfly' and Jensen Ackles in 'Countdown' Juhan Noh/Prime; Elizabeth Morris/Prime Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text Prime Video has canceled a pair of first-year series, Butterfly and Countdown. The Amazon MGM Studios series had summer debuts and each spent a short time on Nielsen's top 10 U.S. streaming charts, but neither will return for a second run.