Episode Title:
Stone World The Beginning.
Episode Description:
With Senku seemingly killed after Tsukasa delivers a fatal blow to his neck, Taiju and Yuzuriha use his gunpowder to set off an explosion around Tsukasa, allowing them to escape. Realizing that Senku wouldn't simply sacrifice himself, Taiju and Yuzuriha discover a spot of petrification remaining on his neck, giving them the opportunity to heal the fatal injury by using the revival fluid to turn the petrification back to healthy flesh. Meanwhile, a flashback shows how Senku first emerged from his petrification and developed the tools needed to survive.
