The BEST episodes of The Deep (2015)

Every episode of The Deep (2015) ever, ranked from best to worst by thousands of votes from fans of the show. The best 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: 10/1/2026Network: ABC MeStatus: Ended

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27 votes

#1 - Lonesome Jim

Season 1 - Episode 6 - Aired 12/8/2015

Someone stole the rarest tortoise in the world and the Nektons are searching for it.

Directors: Trent Carlson

Writer: Philip Dalkin

Watch Now:Apple TV

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#2 - 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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#3 - More Thunder and Lightning

Season 3 - Episode 11 - Aired 3/13/2019

The Nektons return to the mysterious Lemurian Gates they found previously. Exploring within, they're stunned to discover Lemuria is here.

Watch Now:Apple TV

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#4 - 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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#5 - Purple Tide

Season 3 - Episode 8 - Aired 3/10/2019

The Nektons try to save an island from "The Purple Tide" that legend says will destroy everything. To save it, they need to find "The Protector".

Watch Now:Apple TV

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#6 - The Unicorn

Season 3 - Episode 7 - Aired 3/9/2019

Ant tries to locate a "diamond-horned sea-unicorn" as a present for Fontaine's birthday. But Dolos and Devil Daniels are also hunting it.

Watch Now:Apple TV

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#7 - The Circle Game

Season 3 - Episode 6 - Aired 3/8/2019

The Nektons find an underwater crop circle. It's made by a giant male puffer fish to attract a mate. Can Ant help the romance along?

Watch Now:Apple TV

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#8 - Family Ties

Season 3 - Episode 5 - Aired 3/7/2019

Devil Daniels insists he's relocating a dangerous killer whale. But it is a scam that turns dangerous - for Ant and the whale.

Watch Now:Apple TV

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#9 - Just Eaten

Season 3 - Episode 4 - Aired 3/6/2019

The Aronnax and Alpheus' sub are trapped within a giant Jellyfish Monumential. They've been eaten and the jellyfish won't let food out.

Watch Now:Apple TV

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#10 - 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.

Watch Now:Apple TV

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#11 - 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?

Watch Now:Apple TV

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#12 - 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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#13 - The Gates

Season 2 - Episode 13 - Aired 10/10/2017

Alpheus has finally found the gates to Lemuria, and the Nektons must stop him before he unleashes powers on the world that even he can't control.

Watch Now:Apple TV

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0 votes

#14 - Thunder & Lightning

Season 2 - Episode 12 - Aired 10/3/2017

At Catatumbo Bay, a lightning storm has been raging for hundreds of yearsand for the first time, it's intensifying. The Nektons' investigations reveal that a gigantic creature is responsible!

Watch Now:Apple TV

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#15 - The Missing

Season 2 - Episode 11 - Aired 9/26/2017

The Nektons find the Dark Orca pirate submarine completely deserted! It's as if the pirate crew have abandoned it. But why? And what are those mysterious, ghostly sounds?

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#16 - Whale of a Tale

Season 2 - Episode 10 - Aired 9/19/2017

The Nektons encounter a huge, white whale, but Devil Daniels: Monster Hunter is trying to capture it. When they discover who the whale really is, the Nektons go head-to-head with Daniels to save it!

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#17 - The Maze

Season 2 - Episode 9 - Aired 9/11/2017

The Nektons find a mysterious underwater maze. When they enter it, walls shift and they become disoriented. They're soon trapped inside and, what's worsethey're not alone!

Watch Now:Apple TV

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#18 - Beware the Sentinels

Season 2 - Episode 7 - Aired 8/27/2017

A mysterious, ancient temple beneath the sea has been hidden for centuries. The Nektons discover it was hidden for a very good reason, and the local sea life protect it at all costs!

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#19 - Lemuria

Season 3 - Episode 12 - Aired 3/14/2019

The Nektons explore Lemuria but Fontaine realises the others are being affected by a dangerous algae. Can she find an antidote and save them?

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#20 - The Sceptre

Season 3 - Episode 13 - Aired 3/15/2019

The Nektons find the Queen's sceptre. But when faced with the Kraken and the Electric Ray Monumential together, Ant can't make it work.

Watch Now:Apple TV

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#21 - 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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#22 - 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:Apple TV

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#23 - 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?

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#24 - 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:Apple TV

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#25 - 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:Apple TV