The Nemesis Within

The Nemesis Within is the 41st episode of The New Adventures of He-Man.

Primus is holding the first Intergalactic Science Conference. Skeletor steals a Geneticator and creates an evil duplicate of He-Man which he names 'He-Slave'.

Plot Summary
Several inventors are being brought to Primus to show their inventions at the first Intergalactic Science Conference. Skeletor uses Grr to steal one of such inventions, a cloning device called the Geneticator, before its arrival to the planet. When He-Man goes to recover the device from the Quagmi Swamp, the mutants manage to take a sample of his genetic code.

Skeletor uses the device and the sample to create a clone of He-Man, whom he names "He-Slave". Skeletor and He-Slave use a long cloak to disguise as one tall man and get on board a passenger ship to Primus, piloted by Tuskador.

On Primus, Skeletor and He-Slave reveal themselves. He-Man faces He-Slave, but He-Slave knows all and every of He-Man techniques and movements, and defeats him. He-Man, after some encouragement of the Sorceress, gets on his feet and gets the upper hand. Skeletor sees He-Man is winning and shoots both combatants. This angers He-Slave, who turns against Skeletor and both are seemingly destroyed, but Skeletor survives and escapes.

Moral
He-Man tells Caz about campfire safety.

Behind the Scenes

 * He-Slave is a sort of New Adventures version of Faker.
 * When disguised in the passenger ship, Skeletor wears a cloak on his head, which resembles his classic appearance.
 * In the moral, Tuskador shoots water from his trunk, like Snout Spout, but the canonicity of these morals is arguable, so it's unknown if he has that power.

Errors

 * Near the end of the story, after He-Man says "The power of the good cannot be defeated", it cuts to a shot of him holding aloft his magic sword, yet the clouds in the background remain the same.

Galactic Guardians

 * Adam of Grayskull / He-Man
 * Artilla (cameo) (non speaking role)
 * Flipshot (cameo) (non speaking role)
 * Hydron (cameo) (non speaking role)
 * Sagitar
 * Spinwit
 * Tuskador (non speaking role)

Scientists

 * Alcon
 * Gepple
 * Krex (non speaking role)
 * Meldoc (non speaking role)

Allies

 * Caz
 * Grot (moral only) (non speaking role) (final Jetlag productions appearance)
 * Master Sebrian
 * The Sorceress

Evil Mutants

 * Quakke
 * Staghorn

Evil Warriors

 * Skeletor

Animals

 * Clawber
 * Grr (final Jetlag productions appearance)
 * Quagmi Leech Gnats (first and only Jetlag productions appearance)

Others

 * Graznor (first and only Jetlag productions appearance)
 * He-Slave (first and only Jetlag productions appearance)

Technology

 * Air Boots
 * Auragraph Camera
 * Geneticator
 * Spectometers
 * Translatealcon

Locations

 * Denebria
 * Quagmi Swamp
 * Primus
 * Nordor

Vehicles

 * Doomcopter
 * Hover Tractor
 * Mutant Mothership
 * Shuttle Craft
 * Shuttle Pod
 * Starship Eternia
 * Terrorclaw

Cast

 * Don Brown as Gepple and Quakke
 * Garry Chalk as He-Man, He-Slave and Alcon
 * Ted Cole as Slush Head and Staghorn
 * Mark Hildreth as Caz
 * Anthony Holland as Master Sebrian
 * Campbell Lane as Skeletor and Sagitar
 * Scott McNeil as Various
 * Doug Parker as Adam of Grayskull
 * Alvin Sanders as Various
 * Venus Terzo as The Sorceress