“Doctor. Stone” season 2, titled “Stone Wars,” the story focuses on Senku Ishigami and his “Kingdom of Science” as they face off against Tsukasa Shishiou’s “Empire of Might” in a battle to rebuild civilization, with Senku using his scientific ingenuity to overcome Tsukasa’s brute force and recruit more people to his side while navigating the growing conflict between their ideologies on who should lead the new society; all while trying to decipher the mystery behind the petrification event that turned humanity to stone