The Test of Time

 is the 37th episode of The New Adventures of He-Man.

Levitan is in need of Beryllium to keep it afloat. A shipment of the precious ore is intercepted by the Evil Mutants. Treylus, the trader, helps the Guardians on a mission to Denebria to retrieve the goods. His old friend Master Sebrian doesn't want to be left behind and joins them as a stowaway.

Plot Summary
Without Beryllium to run its generators, Levitan, the floating city on Primus, threatens to fall from the sky and crash onto the planet. Treylus, the dealer and friend of Master Sebrian, journeys to Primus on his spaceship, the Star Trader to bring the required Beryllium, but is intercepted by the Evil Mutants. Treylus is taken from his ship, the Star Trader and left aboard an inoperative Shuttle Pod in space. Treylus manages to send out a distress signal, which is picked up by a patrol of the Galactic Guardians, who rescue him.

The Galactic Guardians take Treylus to Primus, where he is reunited with his old companion Master Sebrian. After Treylus has explained the situation, He-Man, Treylus, Master Sebrian, and a few other Galactic Guardians go to Denebria, where they suspect the Mutants have taken the Beryllium. Master Sebrian is impressed of the determination of the friend of the same age and wants to accompany him on his campaign to retrieve the Beryllium.

When they arrive near Denebria, the Mutants attack the heroes of Primus directly, letting them know that they were on the right track. While a fierce battle ensues around Denebria's orbit, Master Sebrian and Treylus manage to land on Denebria and find the Star Trader. Treylus and Master Sebrian manage to outsmart the Mutants and capture the Star Trader. Because the freighter has no weapons, their hope rests on the speed of the ship.

When they reach Denebria's orbit, they find that they are so outnumbered that not even He-Man and the Galactic Guardians, can keep the Mutants away from the Star Trader. Master Sebrian uses a Voice Decoder to make his voice sound like Flogg's, telling the Mutants to return to base via radio communicator. Flogg cannot retaliate, because earlier he had grown angry and destroyed the control panels of his ship, disabling him from communicating with his Mutants. As all the Mutant shuttles return to Denebria, the Galactic Guardians and the Star Trader fly safely back to Primus.

On Primus, the generators of the flying city of Levitan are repaired, thanks to the Beryllium that Treylus had brought.

Moral
During a camping trip, He-Man reminds Sagitar to make sure their campfire is out before they leave.

Galactic Guardians

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

Scientists

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

Allies

 * Mara
 * Master Sebrian
 * Treylus (first and only Jetlag productions appearance)

Evil Mutants

 * BH (non speaking role)
 * Crita (non speaking role)
 * Flogg
 * Slush Head
 * Staghorn (non speaking role)
 * Quakke (non speaking role)
 * Mutant Troopers

Evil Warriors

 * Skeletor

Technology

 * Gleep

Vehicles

 * Astrosub
 * Mutant Mothership
 * Shuttle Pod
 * Starship Eternia
 * Star Trader
 * Terrorclaws
 * Terrortreads

Locations

 * Denebria
 * Primus
 * Levitan
 * Oasis
 * Master Sebrian's Home
 * Nordor

Minerals

 * Beryllium

Cast

 * Don Brown as Hydron and Gepple
 * Garry Chalk as He-Man and Artilla
 * Ted Cole as Slush Head and Gleep
 * Anthony Holland as Master Sebrian
 * Campbell Lane as Skeletor and Sagitar
 * Scott McNeil as Flipshot
 * Doug Parker as Adam of Grayskull and Meldoc
 * Alvin Sanders as Flogg
 * Venus Terzo as Mara
 * Long John Baldry (uncredited) as Treylus