The film is based on the events surrounding the Lengede mining accident in 1963.
as Franz Wolbert
as Renate Reger
as Bruno Reger
as Helga Wolbert
as Jürgen Grabowski
as Harald Hansen
as Dr. Heiner Dietz
as Rudolf Schönfeld
as Erwin
as Salvatore di Pietro
as Dr. Schleip
as Pit Spieker
as Albin
as Pfarrer
