The BEST Episodes of The Deep
Every episode ever - ranked by fan votes!
Last Updated: Jan 14, 2020
Network: BBC One
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.
#1 - Everything Put Together Falls Apart
Season 1 - Episode 4 - Aired Aug 24, 2010
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. In their struggle to escape, some are left behind; will they be able to complete their mission?
#2 - To the Furthest Place
Season 1 - Episode 1 - Aired Aug 3, 2010
The Orpheus' team of scientists are on a mission to find a renewable source of energy in the depths of the Arctic Ocean. The last team who went died in mysterious circumstances, so the Orpheus crew are already feeling nervous when a salvage inspector unexpectedly joins their mission. What does he know about the lost crew, and who is he working for?
#3 - Ghosts of the Deep
Season 1 - Episode 3 - Aired Aug 17, 2010
The Orpheus crew's quest for renewable energy has led them into danger. They're 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? Meanwhile Clem is determined to find out what part the Volos had in his wife's death.
#4 - Into the Belly of the Beast
Season 1 - Episode 2 - Aired Aug 10, 2010
The scientific crew on the Orpheus submarine runs into severe danger in their quest to find rare micro-organisms. One crew member has died, the Orpheus has been intercepted and two of the crew are trapped and running out of air. They have to escape, but can they risk boarding the mysterious vessel which looms above them?
#5 - The Last Breath
Season 1 - Episode 5 - Aired Aug 31, 2010
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 manage to stabilise the energy source and make it back to the surface?