Britisher Sir Charles Farrington and a son, Rex Farrington, arrive in a Russian Soviet territory searching for another Farrington son, Michael,who has been thrown into prison. Valarie Perrovna is a singer who is in love with the imprisoned son and she provides the searchers with the information as to where the missing son is being held. They all go there and help Michael escape. But is their escape vehicle---a flat wagon pulled by three horses--- fast enough and sturdy enough through the snow to beat the Commmisar and his troops to the Rumanian border
Unfortunately the movie Forbidden Territory is not yet available on HBO Max.
| Directing | Phil Rosen | Director |
| Production | Richard Wainwright | Producer |
| Writing | Dennis Wheatley | Novel |
| Writing | Alma Reville | Screenplay |
| Writing | Dorothy Farnum | Adaptation |
| Production | Joe Rock | Associate Producer |
| Sound | Louis Levy | Original Music Composer |
| Sound | Charles Williams | Original Music Composer |
| Editing | Hugh Stewart | Editor |
| Writing | Dorothy Farnum | Writer |
