Dr. Stone Episode 4
Episode Title: Fire the Smoke Signal
Dr. Stone Episode 4. After Senku creates a successful batch of gunpowder, which Taiju accidentally sets alight, the group spotted a different source of smoke in the distance, suggesting that there are other survivors.
Fire the Smoke Signal. Senku chooses light-weight the powder additional to use as a smoke signal, leading Tsukasa to seek out him and use Yuzuriha as a prisoner to get the recipe for the revival fluid. As Senku relinquishes the instruction to save lots of Yuzuriha and is given the selection of either abandoning science or dying, he remembers however he developed his love of science and became friends with Taiju.
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