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.
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.
The battle between Hyoga and Moz comes to a close, and it doesn't take long for Ibara to reclaim the Medusa from Yo. This marks the beginning of the countdown to the biggest disaster yet.