As the world's energy supplies dwindle, the Orpheus, a research submarine, delves into the deep of the Arctic Ocean searching for rare micro-organisms, but the crew soon find themselves in peril.
Minnie Driver
Goran Višnjić
James Nesbitt
Antonia Thomas
Orla Brady
Richard Brake
Sacha Dhawan
Sinéad Cusack
Tobias Menzies