Overview: Cole, Dr. Railly and Aaron strive to stop the virus from being deployed as a bioweapon in Chechnya.
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First Air Date: Jan 16, 2015Last Air date: Jul 06, 2018Season: 4 SeasonEpisode: 47 EpisodeRuntime: 43 minutesQuality: HDIMDb: 7.41 / 10 by 1054 usersPopularity: 61.379Language: English