The crew of a deep-sea trawler face a series of life-threatening challenges on the open ocean. While the ship battles brutal weather and treacherous icy conditions (the metaphorical "black ice" of the sea), the plot centers on the internal and external conflicts of the sailors.
Gordon Jackson
Ronald Fraser
Paul Carpenter
Ewen Solon
Edwin Richfield
David Oxley
George Tovey
Ben Williams
Claude Kingston
Barry Keegan
Maureen Davis
Hilda Fenemore
Errol MacKinnon