Discover a spectacular animated world where good meets evil in a sci-fi collision of high technology and mythic fantasy. When the Lightstar Crystal is split into two, the kingdom of LuminiCity is plunged into darkness and divided into two warring factions.

Someone has betrayed the humans and the Legion of Light is captured by Baron Dark. All fingers point to their brother Grimskull because he has the ability to mentally connect with the evil Baron Dark.

For the first time, the humans discover a way to stop a Skeleton Warrior when Talyn discovers that by removing a Warrior's heartstone, that Warrior is instantly refleshed. Ferris leaves the Legion of Light.

For the first time, the humans discover a way to stop a Skeleton Warrior when Talyn discovers that by removing a Grimskull and some Legion of Light commandos investigate what is believed to be the new Crystal Chamber, but instead find a data crystal.

Talyn and Lightstar are worried when Grimskull suffers from constant nightmares about Baron Dark. The nightmare becomes real when he suddenly falls into a coma.