Because of the incident on the island, a re-match is being held in Mexico. The objective is to make a bread with fish or a bread that tastes good with fish. Each team must skydive down towards the San Agustin River, the place where the match is being held. But in order to eliminate team Japan, the professional skydivers that were hired for the match, lead team Japan away from the river and towards Huautla, the deepest cave in the world. Pierrot, noticing something is wrong, follows team Japan into Huautla. Eventually team Japan begins to lose hope about ever coming out alive, and the only possible escape route is to swim 2-3 km underwater. Pierrot convinces team Japan that he will go and call for help, but in truth he cannot swim.