For millennia, tunnels have allowed us to shorten distances and cross obstacles deemed impassable.
Today, in the heart of the Alps, hundreds of men and women are putting their knowhow at the service of a titanic project: building the largest railway tunnel in the world: the LyonTurin
Within a colossal construction site, these builders invent and use all the techniques to overcome the mountain and construct the work of the century.
Director: Quentin Domart and Hugo Hernandez