Despite knowing the risks, Sento uses the Hazard Trigger to empower himself against Kazumi's three subordinates. After losing his consciousness and killing one of them, Sento is struck with guilt and refuses to keep fighting, until Soichi gives him an alternative.
| Title | Kamen Rider Build - Season 1 Episode 21 The Unstoppable Hazard |
|---|---|
| Year | 2018 |
| Genre | Action & Adventure, War & Politics, Sci-Fi & Fantasy, Drama, Kids |
| Country | Japan |
| Studio | tv asahi |
| Cast | Atsuhiro Inukai, Eiji Akaso, Kaho Takada, Kouhei Takeda, Tetsuo Kanao |
| Crew | Ryuta Tasaki (Series Director), Shogo Muto (Series Composition) |
| Alternative Titles | 假面骑士Build, Kamen Rider Build, Heisei Rider 19, Masked Rider Build |
| Keyword | amnesia, superhero, henshin heroes, tokusatsu, mars |
| First Air Date | Sep 03, 2017 |
| Last Air date | Aug 26, 2018 |
| Season | 1 Season |
| Episode | 49 Episode |
| Runtime | 24:14 minutes |
| Quality | HD |
| IMDb: | 5.50/ 10 by 2.00 users |
| Popularity | 7.771 |
| Language | Japanese |
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