Dejected after getting into difficulties during a battle with pirates, Feryl leaves the Spectral Knights. Darkstorm tries to turn the situation to his advantage and, after an initial attempt to enlist Feryl in the Darkling Lords fails, lures Leoric into a trap by making him think Feryl's life is in danger. But Feryl soon learns what has happened and trails the Darkling Lords to Castle Darkstorm.

The story is set on the fictional planet of Prysmos, a futuristic society where all technology and complex machinery suddenly cease functioning, and its citizens are forced to rely on ancient magic to survive. This happens when the three suns of the planet align and their combined radiation emissions deactivate all technology on the planet, similar to an electromagnetic pulse effect. The titular Visionaries are knights who are split into two factions: the heroic Spectral Knights and the evil Darkling Lords. The Visionaries who wish to gain the usage of magic is invited to a competition by the wizard Merklynn. After surviving traps, dangerous creatures, and each other, survivors are rewarded with unique animal totems affixed to their armor chestplates; these talismans are based on the bearers' individual attributes while allowing them to transform into their specific creatures.