The legend of Voltron is tarnished, and the Voltron pilots have moved on. Or so young cadets Daniel and Vince have been led to believe...

Daniel and Vince arrive at the Castle of Lions and meet a fellow Cadet Larmina, who is revealed to be Princess Allura's niece and the trio are given their "Voltcoms", special gauntlets that will allow them to become future pilot's for the Lions. Meanwhile Kala, a Drule commander, and Maahox, a scientist, succeed in bringing Lotor back to life...

Wade goes insane, replacing all Alliance soldiers with robots, while he sends a massive Robot Lion to battle both the Voltron Force and Kala...

When the cadets grow impatient with their lack of flight hours in the Lions, Daniel convinces the group to borrow the Lions so they can sneak off to go to Planet Doom. But they soon find themselves abducted and held prisoner by Maahox...