The BEST Episodes of The Deep

Every episode ever - ranked by fan votes!

Last Updated: Jun 13, 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.

Everything Put Together Falls Apart

#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?

star 7.71
586 votes
Directors: Colm McCarthy
Writers: Simon Donald
To the Furthest Place

#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?

star 7.60
814 votes
Directors: Jim O'Hanlon
Writers: Simon Donald
Ghosts of the Deep

#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.

star 7.49
697 votes
Directors: Jim O'Hanlon
Writers: Paul Rutman, Simon Donald
Into the Belly of the Beast

#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?

star 7.40
729 votes
Directors: Jim O'Hanlon
Writers: Simon Donald
The Last Breath

#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?

star 7.21
527 votes
Directors: Colm McCarthy
Writers: Simon Donald