Season 1, Episode 5
The Orpheus crew have found rare bio fuels in the ocean depths, but they must find a way of getting it to the surface safely. With the Russian captain of the Volos submarine determined to stop them, will they make it back to the surface?
Season 1, Episode 4
The Orpheus is mended, and the captain wants the crew to find more of the rare bio-fuel samples before they return to the surface. The Russian captain has other ideas, however, and instructs his men to kill the crew.
Season 1, Episode 3
The crew are trapped on Volos, a Russian submarine, and its nuclear reactor is dangerously overheating. Whoever shuts it down will be exposed to lethal radiation. Who will draw the short straw?
Season 1, Episode 2
The crew are in severe danger; one member has died, the Orpheus has been intercepted and two of them are trapped and running out of air. They have to escape, but can they risk boarding the mysterious vessel which looms above them?
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