Drstone_ep_04_ita.mp4 -

: Senku successfully mixes sulfur, charcoal, and other ingredients to create gunpowder. An accidental explosion during the process alerts others to their location ( Crow's World of Anime ).

Mt. Hakone to gather sulfur. Their goal is to create gunpowder as a defensive weapon against the powerful antagonist Tsukasa Shishiou (Dr. Stone Wiki). DrStone_Ep_04_ITA.mp4

: The episode features a flashback to Senku’s childhood, showing his early passion for science and his father’s support in his pursuit of becoming an astronaut (Screenspy). : Senku successfully mixes sulfur, charcoal, and other

: The explosion acts as a smoke signal, which is unexpectedly answered by other signals in the distance. This reveals the possibility that other conscious humans exist in the stone world ( Screenspy ). : Senku successfully mixes sulfur