Imperious Rex

Susan and Johnny witness the arrival of Namor, the Sub-Mariner, who bans humankind from using the oceans of the world. Susan takes Johnny (who hates the water with a passion) under the sea, hoping to reason with Namor. Instead, the siblings become prisoners of Namor in the fabled city of Atlantis. Reed and Ben fight their way through a swath of undersea monsters to come to their rescue, but Namor proves to be a formidable foe. And even worse, impressed by Susan's eloquent pleas for peace, he decides to keep her in Atlantis as an ambassador.

Johnny Storm/Human Torch, Reed Richards/Mr. Fantastic, Susan Storm/Invisible Woman, Benjamin Grimm/The Thing, H.E.R.B.I.E.

The Fantastic Four, heroes of Marvel Comics, celebrated around the world, return in an all-new animated series. Reed Richards/Mr. Fantastic, Susan Storm/Invisible Woman, Benjamin Grimm/The Thing and Johnny Storm/Human Torch form a group of inseparable friends- more importantly, a team of superheroes ready to fight for what's good. Together, they do battle against humanity's worst enemies: Dr. Fatalis, the Skrulls, Mole Man and other brightly colored villains.

2D/3D animation.

Alternate title of series: "Fantastic Four: World's Greatest Heroes."