The WORST episodes of The Deep (2015)

Every episode of The Deep (2015) ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of The Deep (2015)!

The sea is deep and full of secrets! Meet the Nektons, a family of explorers uncovering the unknown mysteries that lie beneath.

Last Updated: 11/24/2024Network: ABC MeStatus: Continuing

6.00

10 votes

#1 - Kenji’s Monster

Season 2 - Episode 5 - Aired 8/14/2017

A giant, upright creature, straight out of a monster movie, is walking across the ocean floor, causing havoc. Kaiko knows this isn't a normal sea creature. But what is it? And how can it be stopped?

Watch Now:Amazon

6.18

17 votes

#2 - Devil's Sea Mystery

Season 1 - Episode 5 - Aired 12/7/2015

Are aliens stealing things from a Japanese island and dragging them underwater? The Nektons investigate and find something even more dangerous and amazing!

Directors: Trent Carlson

Writer: Tom Taylor

Watch Now:Amazon

6.33

6 votes

#3 - The Race

Season 3 - Episode 9 - Aired 3/11/2019

Ant wants to go faster than the fastest fish in the sea - the sailfish. But he hasn't counted on a deadly oil spill.

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6.33

6 votes

#4 - The Treasure

Season 3 - Episode 1 - Aired 3/3/2019

The Dark Orca pirates unwittingly steal a treasure that can awaken a Monumential and possibly destroy them and the Nektons.

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6.33

6 votes

#5 - Bloop

Season 1 - Episode 23 - Aired 12/31/2015

The Nektons are trying to identify a unique life form. They've never seen it, they've only heard its sound: 'Bloop'.

Directors: Trent Carlson

Writer: Philip Dalkin

Watch Now:Amazon

6.38

8 votes

#6 - The Abyss Stares Back

Season 1 - Episode 13 - Aired 12/17/2015

While diving into a rare 'blue hole', a sinkhole in the middle of the sea, strange things begin to happen to the Nektons.

Directors: Trent Carlson

Writer: Philip Dalkin, Tom Taylor

Watch Now:Amazon

6.40

5 votes

#7 - Deceptive Appearances

Season 4 - Episode 6 - Aired 6/29/2022

Mad Madeline steals the dangerous Sceptre of Queen Dorius.

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6.40

5 votes

#8 - The Lead

Season 4 - Episode 4 - Aired 6/27/2022

Does Dolos really have a lead on finding Ant’s grandparents? Or is he leading the Nektons into a dangerous chasm between moving tectonic plates for nefarious purposes?

Watch Now:Amazon

6.43

7 votes

#9 - Friends In Deep Places

Season 3 - Episode 3 - Aired 3/5/2019

Trying to rescue Jess Gorman in an underwater cave proves dangerous for Ant and Fontaine until a Manatee comes to their aid.

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6.43

7 votes

#10 - Off Line

Season 3 - Episode 2 - Aired 3/4/2019

The internet being down is the worst thing imaginable for Ant and Fontaine - until Ant finds the sea monster responsible! Can he save both?

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6.50

6 votes

#11 - Kidnapped

Season 3 - Episode 10 - Aired 3/12/2019

Jeffrey is kidnapped, in his "Jeffrey Knight", by Dark Orca pirates. Can Jeffrey turn the tables and save himself?

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6.60

5 votes

#12 - Unidentified Floating Objects

Season 4 - Episode 8 - Aired 7/1/2022

The Nektons are busy recovering sunken shipping containers, so when Bethany the fish finds herself in danger, only Jeffrey can save her!

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6.60

5 votes

#13 - Bad Luck Fish

Season 1 - Episode 21 - Aired 12/29/2015

A fish invades Jeffrey's home on the Aronnax. How can she get rid of it and its bad luck?

Directors: Trent Carlson

Writer: Philip Dalkin

Watch Now:Amazon

6.60

5 votes

#14 - Loki's Castle

Season 1 - Episode 25 - Aired 1/4/2016

While fighting over Viking treasure, the Nektons take over the Dark Orca. But the pirates in turn take over the Aronnax.

Directors: Trent Carlson

Writer: Philip Dalkin

Watch Now:Amazon

6.60

5 votes

#15 - The Hole Truth

Season 4 - Episode 1 - Aired 6/24/2022

Ant and Fontaine realise their grandparents found Lemuria before them - but where are they now?\n\nThe Nektons follow the trail they left but run into giant, predatory Sand Strikers! Was this the fate of their grandparents?

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6.60

5 votes

#16 - The Biggest

Season 4 - Episode 2 - Aired 6/25/2022

Ant searches a deep chasm for clues to his grandparents' fate but is stunned to find Mad Madeline there! She has been looking for the biggest sunken treasure ever, but all she has managed to find is the biggest monster!

Watch Now:Amazon

6.60

5 votes

#17 - Little Problems

Season 4 - Episode 3 - Aired 6/26/2022

Three baby Monumential turtles hatch, and they are the size of city blocks! The playful babies accidentally sink a fishing trawler! Can the Nektons wrangle these creatures before they sink even more ships?

Watch Now:Amazon

6.60

5 votes

#18 - AWOL

Season 4 - Episode 5 - Aired 6/28/2022

A mysterious dolphin in a sophisticated electronic harness zaps all the Rover's power! Ant and Fontaine manage to remove the harness, but can they rehabilitate this cybernetic dolphin to survive in the wild?

Watch Now:Amazon

6.60

5 votes

#19 - Glass Houses

Season 4 - Episode 7 - Aired 6/30/2022

The Nektons help locate a legendary Singaporean glass cabinet. However, they discover it is guarded by a terrifying and familiar creature.

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6.60

5 votes

#20 - At the Bottom of the Gyre

Season 4 - Episode 9 - Aired 7/2/2022

Ant has created a clever machine to clean up a vast oceanic rubbish dump. However, when the machine is been eaten by a huge creature, it's up to the Nektons to save it.

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6.60

5 votes

#21 - Walking with Fish

Season 4 - Episode 10 - Aired 7/3/2022

Ant and Fontaine discover the secret of the Bajau Laut people, a tribe of sea nomads living in the South China Sea. The pair are determined to help them - but how do you find a fish that walks?

Watch Now:Amazon

6.60

5 votes

#22 - Getting Warmer

Season 4 - Episode 11 - Aired 7/4/2022

Ant and Fontaine rescue a polar bear from the middle of the ocean. However, when they bring her onboard, they realize she is close to giving birth! Can the Nektons move her to a safer place in time?

Watch Now:Amazon

6.60

5 votes

#23 - The Big Clue

Season 4 - Episode 12 - Aired 7/5/2022

Fontaine is amazed when Smiling Finn tells her that he has detected a signal from her grandparents’ missing submarine. Is this a joke, an elaborate scam, or something even more amazing?

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6.64

11 votes

#24 - Junior Nektons

Season 1 - Episode 14 - Aired 12/18/2015

Ant and Fontaine have to deal with young fans visiting the Aronnax when they have to rescue a whale calf.

Directors: Trent Carlson

Writer: Philip Dalkin

Watch Now:Amazon

6.71

7 votes

#25 - Mermaids

Season 2 - Episode 3 - Aired 7/31/2017

Mermaids don't exist, right? Well, if that's true, then what's that mermaid-shaped thing swimming outside the Aronnax? Ant is determined to find out, even when pirates get in his way.

Watch Now:Amazon