Bacurau, a small town in the Brazilian sertão, mourns the loss of its matriarch, Carmelita, who lived to be 94. Days later, its inhabitants notice that their community has vanished from most maps.

After traveling the globe to highlight low-tech, Corentin de Chatelperron has set himself a new challenge: to live independently, alone for four months, on a bamboo raft floating in Phang Nga Bay, Thailand. On his 70 square meter platform, the engineer, passionate about ecology and system D, puts into practice what he has learned in order to feed himself and produce his own energy.