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

Ant est persuadé que l'anomalie de la mer Baltique est un ancien ovni. Mais les Nekton font une découverte bien plus dangereuse.

Le professeur Fiction et Fontaine ont été enlevés. Parti à leur recherche, Ant est persuadé qu'il a vu une sirène, mais il ne tarde pas à s'attirer des ennuis.

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.

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

Smiling Finn comes to the Nektons for help. He wants them to stop his father, Captain Hammerhead, from stealing a treasure.

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

The Nektons' nemesis Alpheus Benthos breaks into the Aronnax to steal the Ephemychron and stop the Nektons from finding Lemuria forever. Ant is determined to get it back at all costs.

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 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?

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

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