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.
You can now watch The Deep online on the following streaming providers in the United States.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Here Be Dragons | 2015-12-01 | 25 min |
| Season 1 | Episode 2 | Dark Orca | 2015-12-02 | 25 min |
| Season 1 | Episode 3 | A.I.M.Y. | 2015-12-03 | 25 min |
| Season 1 | Episode 4 | Digging Deeper | 2015-12-04 | 25 min |
| Season 1 | Episode 5 | Devil's Sea Mystery | 2015-12-07 | 25 min |
| Season 1 | Episode 6 | Lonesome Jim | 2015-12-08 | 25 min |
| Season 1 | Episode 7 | Captured | 2015-12-09 | 25 min |
| Season 1 | Episode 8 | The Test | 2015-12-10 | 25 min |
| Season 1 | Episode 9 | Fossil | 2015-12-11 | 25 min |
| Season 1 | Episode 10 | Colossal Squid | 2015-12-14 | 25 min |
| Season 1 | Episode 11 | Monster Hunter | 2015-12-15 | 25 min |
| Season 1 | Episode 12 | The Phantom Sub | 2015-12-16 | 25 min |
| Season 1 | Episode 13 | The Abyss Stares Back | 2015-12-17 | 25 min |
| Season 1 | Episode 14 | Junior Nektons | 2015-12-18 | 25 min |
| Season 1 | Episode 15 | Treasure of the Islanders | 2015-12-21 | 25 min |
| Season 1 | Episode 16 | Tunnel | 25 min | |
| Season 1 | Episode 17 | The Sunken Gallery | 25 min | |
| Season 1 | Episode 18 | The Field of Giants | 25 min | |
| Season 1 | Episode 19 | The Proteus Factor | 25 min | |
| Season 1 | Episode 20 | The Song of the Siren | 25 min | |
| Season 1 | Episode 21 | Bad Luck Fish | 25 min | |
| Season 1 | Episode 22 | Strange Migration | 25 min | |
| Season 1 | Episode 23 | Bloop | 25 min | |
| Season 1 | Episode 24 | The Twilight Zone | 25 min | |
| Season 1 | Episode 25 | Loki's Castle | 25 min | |
| Season 1 | Episode 26 | Tartaruga | 2016-05-16 | 25 min |
| Season 2 | Episode 1 | From The Stars | 2017-07-17 | 25 min |
| Season 2 | Episode 2 | The Baltic Sea Anomaly | 2017-07-24 | 25 min |
| Season 2 | Episode 3 | Mermaids | 2017-07-31 | 25 min |
| Season 2 | Episode 4 | Treacherous Waters | 2017-08-07 | 25 min |
| Season 2 | Episode 5 | Kenjis Monster | 2017-08-14 | 25 min |
| Season 2 | Episode 6 | Finn Comes Aboard | 2017-08-21 | 25 min |
| Season 2 | Episode 7 | Beware the Sentinels | 2017-08-27 | 25 min |
| Season 2 | Episode 8 | Hidden Secrets | 2017-09-04 | 25 min |
| Season 2 | Episode 9 | The Maze | 25 min | |
| Season 2 | Episode 10 | Whale of a Time | 25 min | |
| Season 2 | Episode 11 | The Missing | 25 min | |
| Season 2 | Episode 12 | Thunder and Lighting | 25 min | |
| Season 2 | Episode 13 | The Gates | 25 min | |
| Season 3 | Episode 1 | The Treasure | 2019-03-03 | 25 min |
| Season 3 | Episode 2 | Off Line | 2019-03-04 | 25 min |
| Season 3 | Episode 3 | Friends In Deep Places | 2019-03-05 | 25 min |
| Season 3 | Episode 4 | Just Eaten | 2019-03-06 | 25 min |
| Season 3 | Episode 5 | Family Ties | 2019-03-07 | 25 min |
| Season 3 | Episode 6 | The Circle Game | 2019-03-08 | 25 min |
| Season 3 | Episode 7 | The Unicorn | 2019-03-09 | 25 min |
| Season 3 | Episode 8 | Purple Tide | 2019-03-10 | 25 min |
| Season 3 | Episode 9 | The Race | 2019-03-11 | 25 min |
| Season 3 | Episode 10 | Kidnapped | 2019-03-12 | 25 min |
| Season 3 | Episode 11 | More Thunder and Lightning | 2019-03-13 | 25 min |
| Season 3 | Episode 12 | Lemuria | 2019-03-14 | 25 min |
| Season 3 | Episode 13 | The Sceptre | 2019-03-15 | 25 min |
| Season 4 | Episode 1 | The Hole Truth | 2022-05-30 | 25 min |
| Season 4 | Episode 2 | The Biggest | 2022-05-31 | 25 min |
| Season 4 | Episode 3 | Little Problems | 2022-06-01 | 25 min |
| Season 4 | Episode 4 | The Lead | 2022-06-02 | 25 min |
| Season 4 | Episode 5 | AWOL | 2022-06-06 | 25 min |
| Season 4 | Episode 6 | Deceptive Appearances | 2022-06-07 | 25 min |
| Season 4 | Episode 7 | Glass Houses | 2022-06-08 | 25 min |
| Season 4 | Episode 8 | Unidentified Floating Objects | 2022-06-09 | 25 min |
| Season 4 | Episode 9 | At the Bottom of the Gyre | 2022-06-13 | 25 min |
| Season 4 | Episode 10 | Walking with Fish | 2022-06-14 | 25 min |
| Season 4 | Episode 11 | Getting Warmer | 2022-06-15 | 25 min |
| Season 4 | Episode 12 | The Big Clue | 2022-06-16 | 25 min |
| Season 4 | Episode 13 | The Inside Story | 2022-06-20 | 25 min |
| Writing | Simon Donald | Writer |
| Production | Will Gould | Producer |
| Directing | Jim O'Hanlon | Director |
| Writing | Paul Rutman | Writer |
| Camera | Damian Bromley | Director of Photography |
| Camera | Adam Suschitzky | Director of Photography |
| Sound | Samuel Sim | Original Music Composer |
| Art | Simon Bowles | Production Design |
| Art | Andy Thomson | Art Direction |
| Costume & Make-Up | Trisha Biggar | Costume Design |
| Costume & Make-Up | Gemma Low | Makeup Artist |
| Costume & Make-Up | Susan Parkinson | Makeup Artist |
| Editing | Chris Wyatt | Editor |
| Editing | Helen Chapman | Editor |
| Production | Jill Trevellick | Casting |
| Production | Greg Brenman | Executive Producer |
| Production | Simon Donald | Executive Producer |
| Production | Eleanor Moran | Executive Producer |
