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.

The Nektons find the Queen's sceptre. But faced with the Kraken and the Electric Ray Monumential together, can Ant make it work?

The Nektons explore a floating island and find the final piece of the Ephemychron in a cave. But the island has a terrible secret.

When Alpheus Benthos announces he has found the gates to Lemuria, the Nektons fear he's beaten them to their greatest prize.

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

The Nektons are arrested for stealing. Ant and Fontaine escape to prove their innocence, but whoever set them up is already two steps ahead.

The Rover is swallowed by a huge prehistoric shark. Will and Fontaine manage to cling to its gills just inside its mouth.

The Nektons try to stop a fallen satellite's fuel from polluting a marine sanctuary. But someone else is interested in the satellite.

A mysterious ancient temple beneath the sea has been hidden for centuries. The Nektons discover it was hidden for a very good reason.

Fontaine and Smiling Finn get stuck inside a giant clam as the Dark Orca pirates battle the Nektons for the giant pearl within.

The Nektons enter an area of the Bermuda Triangle where the laws of physics don't seem to apply. What's more, they can't escape.

The Dark Orca pirates unwittingly steal a treasure that could awaken a Monumential.

As the Nektons explore a mysterious tunnel behind a huge undersea waterfall, strange creatures and strong currents surprise them at every turn. Everything is not as it seems.

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

Is the Baltic Sea anomaly really a UFO that crashed into the ocean? Ant thinks it is. But what the Nektons find inside is even more strange.

A giant, upright creature, straight out of a monster movie, walks across the ocean floor, causing havoc.

A dragon hunting expedition leads Ant to an ancient scroll that holds clues to an amazing mystery. But his family are trapped by the dragon and only Ant and Jeffrey can save them. And Jeffrey's a fish.

Ant and Fontaine hunt for one of the rarest ocean creatures: the colossal squid. But it turns out to be smarter than anyone thought and thinks the Nektons look tasty. Can the Aronnax survive being pulled down very, very deep?

Does a ghost sub haunt the ocean depths? Ant believes it does, but when he actually finds this "ghost sub", the truth is even stranger - and much more dangerous. Ant and Fontaine find themselves trapped - by a ghost?

While diving in a rare blue hole, a sinkhole in the middle of the sea, strange things begin to happen to the Nektons. They're seeing things that can't exist. And where did the exit go? Why is there no way out?

Dolos has sold two maps leading to the same treasure: one to the Nektons, the other to the pirates. Now it's a race to get there first, and the winner will need to use every sneaky trick in the book to win.

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 worse they're not alone.

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

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

Devil Daniels, Monster Hunter, attempts to hunt a siren - a mythical creature whose song lures sailors to their doom.