Two years after the success of the documentary Demain, Cyril Dion looks back at the initiatives that the documentary has inspired. He takes with him his friend Laure Noualhat, a renowned ecological investigator and very sceptical about the ability of micro initiatives to have a real impact in the face of climate change. Their humorous confrontation pushes them to their limits: what works, what fails? What if, in the end, all this forces us to invent a new story for humanity