Overview: After an explosion rocks the school, one student hopes for a rescue while another one faces a threat from a mysterious virus.
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First Air Date: Sep 08, 2017Last Air date: Mar 20, 2020Season: 4 SeasonEpisode: 40 EpisodeRuntime: 30 minutesQuality: HDIMDb: 7.45 / 10 by 143 usersPopularity: 37.814Language: English