Nikki and Senku discuss bringing more men from Tsukasa's Empire to their side. Chrome surrenders and is captured by Ukyo. Magma returns to Ishigami Village. In the village, Kaseki finished building a wheel. Senku creates blueprints for a steam engine vehicle. Using beeswax, Senku creates a mold for pistons and other parts. At Tsukasa's headquarters, Chrome declares to teach Tsukasa how amazing science is. Hyoga dangles Chrome at the waterfall while Tsukasa interrogates him...