After reviving some of their friends, Senku starts building the drone for their counterattack. Meanwhile, Kohaku and Ginro obtain new information, but it comes at a devastating price.
All that's needed to make antibiotics is alcohol. The best way to get some is to win the Grand Bout, which the Senku and his kingdom will also need to do in order to keep Magma away from Ruri and give her the drug.
Tsukasa and Hyoga are coming to capture the miracle cave. The Kingdom of Science must buy Senku and Chrome some time to turn the tide, or it is all over.