Dangerous Hours is a 1919 American silent drama film directed by Fred Niblo.

[2] The film was based on a short story "A Prodigal in Utopia" published in the Saturday Evening Post.

Her superior is the Bolshevik Boris Blotchi (Richardson), who has a "wild dream of planting the scarlet seed of terrorism in American soil.

"[4] Sofia and Boris turn their attention to the Weston shipyards that are managed by John's childhood sweetheart.

[4] A reviewer in the movie magazine Picture Play protested the film's stew of radical beliefs and strategies: "Please, oh please, look up the meaning of the words 'bolshevik,' and 'soviet.'