Where to watch
Plex
Cast · Directed by Vincent Sherman
JL
Jeffrey Lynn
Kurt Franken
PD
Philip Dorn
Eric Franken
KV
Kaaren Verne
Sylvia Helmuth
LS
Ludwig Stössel
Gustav Muller
AT
Arthur Tovey
Man at Railroad Station
MM
Mona Maris
Ms. Gessner
PW
Peter Whitney
Alex
MK
Martin Kosleck
Heller
EK
Erwin Kalser
Dr. Franken
IG
Ilka Grüning
Frau Franken
FR
Frank Reicher
Professor Baumer
EB
Egon Brecher
Herr Director
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Underground — streaming FAQ
Which OTT platform streams Underground?
Underground is streaming on Plex in United Kingdom. It's not currently on Netflix.
Is Underground on Netflix?
No, Underground is not on Netflix in United Kingdom as of August 2026. It's currently on Plex.
Is Underground on Amazon Prime Video?
No, Underground isn't on Amazon Prime Video in United Kingdom right now. It's on Plex instead.
Where can I watch Underground for free?
Underground is available to stream free (with ads) on Plex in United Kingdom.