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. The cancellation of Butterfly , starring Daniel Dae Kim, comes about two months after it premiered as a binge release. Countdown , led by Jensen Ackles, premiered in June and had a longer rollout, wrapping its 13-episode season in early September.

Butterfly , based on a graphic novel by Arash Amel and Marguerite Bennett, is a spy thriller that stars Kim as a former U.S. intelligence agent who comes out of hiding in South Korea to help his daughter (Reina Hardesty), who’s also a spy. The show spent two weeks on the Nielsen streaming chart

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