

An engineer is hired to plan and oversee the construction of a undersea tunnel between Europe and the US. However, certain interests don't want to see the tunnel built and use every means at their disposal, including sabotage and murder, to stop its construction. French-language version of the 1933 German DER TUNNEL, q.v.
Edmond van Daële
Le contremaître

André Bertic
Gordon

Philippe Richard
Harryman

Raymonde Allain
Ethel Lloyd

Robert Le Vigan
Brooce

Victor Vina
L'orateur

Alexandre Arnoux

William Burke

Henri Trévoux

Henri Valbel
Un ouvrier