Summary A strange sea fortress that guards icy waters is home to a grim secret; experts investigate the mysteries at this eerie structure, which fought an invisible enemy far more deadly than ever imagined.
Directed : Unknown
Written : Unknown
Stars : Rob Bell Dominic Selwood Michele Mitchell Steven Kearney
Genres : Documentary
Release date : Jun 9, 2021
Countries of origin : United States United Kingdom
Official sites : Science Channel
Language : English
Production companies : Like a Shot Entertainment Science Channel GP Productions
Summary A strange sea fortress that guards icy waters is home to a grim secret; experts investigate the mysteries at this eerie structure, which fought an invisible enemy far more deadly than ever imagined.
Genres : Documentary
Release date : Jun 9, 2021
Countries of origin : United States United Kingdom
Official sites : Science Channel
Language : English
Production companies : Like a Shot Entertainment Science Channel GP Productions
